diff --git a/src/api/mod.rs b/src/api/mod.rs
index a87afb8..dc8ae20 100644
--- a/src/api/mod.rs
+++ b/src/api/mod.rs
@@ -1,5 +1,3 @@
-use std::collections::HashSet;
-
 use serde::{Deserialize, Serialize};
 
 mod project;
@@ -47,24 +45,11 @@ where
     ret
 }
 
-fn unique_tasks(tasks: Vec<Task>) -> Vec<Task> {
-    let mut seen_ids = HashSet::new();
-    let mut unique_tasks = Vec::with_capacity(tasks.len());
-
-    for task in tasks {
-        if seen_ids.insert(task.id) {
-            unique_tasks.push(task);
-        }
-    }
-
-    unique_tasks
-}
-
 pub struct ProjectID(pub isize);
 
 impl ProjectID {
     pub fn parse(api: &VikunjaAPI, project: &str) -> Option<Self> {
-        let project = project.trim_start_matches("#");
+        let project = project.trim_start_matches('#');
 
         if let Ok(num) = project.parse() {
             Some(Self(num))
@@ -95,29 +80,30 @@ impl VikunjaAPI {
     }
 
     fn get_request(&self, path: &str) -> String {
-        if let Some(cached) = self.cache.get(path) {
-            cached
-        } else {
-            let client = reqwest::blocking::Client::new();
+        self.cache.get(path).map_or_else(
+            || {
+                let client = reqwest::blocking::Client::new();
 
-            let ret = client
-                .get(&format!("{}/api/v1{}", self.host, path))
-                .header("Authorization", format!("Bearer {}", self.token))
-                .send()
-                .unwrap()
-                .text()
-                .unwrap();
+                let ret = client
+                    .get(format!("{}/api/v1{}", self.host, path))
+                    .header("Authorization", format!("Bearer {}", self.token))
+                    .send()
+                    .unwrap()
+                    .text()
+                    .unwrap();
 
-            self.cache.insert(path.to_string(), ret.clone());
-            ret
-        }
+                self.cache.insert(path.to_string(), ret.clone());
+                ret
+            },
+            |cached| cached,
+        )
     }
 
-    fn put_request(&self, path: &str, data: serde_json::Value) -> String {
+    fn put_request(&self, path: &str, data: &serde_json::Value) -> String {
         let client = reqwest::blocking::Client::new();
 
         client
-            .put(&format!("{}/api/v1{}", self.host, path))
+            .put(format!("{}/api/v1{}", self.host, path))
             .header("Authorization", format!("Bearer {}", self.token))
             .json(&data)
             .send()
@@ -126,11 +112,11 @@ impl VikunjaAPI {
             .unwrap()
     }
 
-    fn post_request(&self, path: &str, data: serde_json::Value) -> String {
+    fn post_request(&self, path: &str, data: &serde_json::Value) -> String {
         let client = reqwest::blocking::Client::new();
 
         client
-            .post(&format!("{}/api/v1{}", self.host, path))
+            .post(format!("{}/api/v1{}", self.host, path))
             .header("Authorization", format!("Bearer {}", self.token))
             .json(&data)
             .send()
@@ -180,7 +166,7 @@ impl VikunjaAPI {
         serde_json::from_str(&resp).unwrap()
     }
 
-    pub fn new_task(&self, title: &str, project: ProjectID) -> Task {
+    pub fn new_task(&self, title: &str, project: &ProjectID) -> Task {
         let id = project.0;
 
         let data = serde_json::json!({
@@ -194,14 +180,14 @@ impl VikunjaAPI {
         // labels
         // priority
 
-        let resp = self.put_request(&format!("/projects/{id}/tasks"), data);
+        let resp = self.put_request(&format!("/projects/{id}/tasks"), &data);
         serde_json::from_str(&resp).unwrap()
     }
 
     pub fn done_task(&self, task_id: isize) -> Task {
         let resp = self.post_request(
             &format!("/tasks/{task_id}"),
-            serde_json::json!({
+            &serde_json::json!({
                 "done": true
             }),
         );
diff --git a/src/args.rs b/src/args.rs
index 9739ce0..f5257fb 100644
--- a/src/args.rs
+++ b/src/args.rs
@@ -18,6 +18,8 @@ pub fn get_args() -> clap::ArgMatches {
                 .name("prj")
                 .about("Commands about projects")
                 .subcommand(command!().name("ls").about("List projects")),
+            // todo : prj add <project>
+            // todo : prj rm <project>
         )
         .subcommand(
             command!()
@@ -35,6 +37,9 @@ pub fn get_args() -> clap::ArgMatches {
                 .name("label")
                 .about("Manage labels")
                 .subcommand(command!().name("ls").about("List all labels")),
+            // todo : label new
+            // todo : label rm
+            // todo : label <label> <task>
         )
         .subcommand(
             command!()
diff --git a/src/main.rs b/src/main.rs
index d7ea365..03119dd 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -20,6 +20,7 @@ fn main() {
             Some(("ls", _)) => {
                 ui::project::list_projects(&api);
             }
+            Some(("add", add_prj_arg)) => {}
             _ => {
                 ui::project::list_projects(&api);
             }
@@ -28,15 +29,16 @@ fn main() {
             Some(("ls", _)) => {
                 ui::print_all_labels(&api);
             }
+            Some(("new", new_label_arg)) => {}
             _ => {
-                ui::print_all_labels(&api);
+                // todo : label tasks
             }
         },
         Some(("new", new_task_arg)) => {
             let title: &String = new_task_arg.get_one("title").unwrap();
             let project: &String = new_task_arg.get_one("project").unwrap();
             let project = ProjectID::parse(&api, project).unwrap();
-            let task = api.new_task(title.as_str(), project);
+            let task = api.new_task(title.as_str(), &project);
             ui::task::print_task_info(task.id, &api);
         }
         Some(("done", done_args)) => {
diff --git a/src/ui/mod.rs b/src/ui/mod.rs
index 69e2531..de714d7 100644
--- a/src/ui/mod.rs
+++ b/src/ui/mod.rs
@@ -46,10 +46,7 @@ fn parse_datetime(datetime_str: &str) -> Option<DateTime<Utc>> {
         return None;
     }
 
-    match DateTime::parse_from_rfc3339(datetime_str) {
-        Ok(dt) => Some(dt.with_timezone(&Utc)),
-        Err(_) => None, // Return None if parsing fails
-    }
+    DateTime::parse_from_rfc3339(datetime_str).map_or(None, |dt| Some(dt.with_timezone(&Utc)))
 }
 
 /// Return a formatted time duration
@@ -58,19 +55,19 @@ pub fn time_since(event: DateTime<Utc>) -> String {
     let duration = now.signed_duration_since(event);
 
     if duration.num_days() > 0 {
-        return format!("{}d ago", duration.num_days());
+        format!("{}d ago", duration.num_days())
     } else if duration.num_hours() > 0 {
-        return format!("{}h ago", duration.num_hours());
+        format!("{}h ago", duration.num_hours())
     } else if duration.num_minutes() > 0 {
-        return format!("{}m ago", duration.num_minutes());
+        format!("{}m ago", duration.num_minutes())
     } else {
-        return "Just now".to_string();
+        "Just now".to_string()
     }
 }
 
 fn print_label(label: &Label) {
     let color = hex_to_color(&label.hex_color).unwrap();
-    print_color_bg(color, &label.title.trim());
+    print_color_bg(color, label.title.trim());
 }
 
 pub fn print_all_labels(api: &VikunjaAPI) {
diff --git a/src/ui/project.rs b/src/ui/project.rs
index 4f38e63..2b22899 100644
--- a/src/ui/project.rs
+++ b/src/ui/project.rs
@@ -15,7 +15,7 @@ pub fn list_projects(api: &VikunjaAPI) {
     for prj in projects {
         project_map
             .entry(prj.parent_project_id)
-            .or_insert_with(Vec::new)
+            .or_default()
             .push(prj);
     }
 
@@ -26,7 +26,7 @@ pub fn list_projects(api: &VikunjaAPI) {
             hex_to_color(&prj.hex_color).unwrap()
         };
         print_color(color, &prj.title);
-        print!(" [{}]\n", prj.id);
+        println!(" [{}]", prj.id);
 
         if let Some(sub_projects) = project_map.get(&(prj.id as usize)) {
             for sub_prj in sub_projects {
@@ -36,7 +36,7 @@ pub fn list_projects(api: &VikunjaAPI) {
                     hex_to_color(&sub_prj.hex_color).unwrap()
                 };
                 print_color(color, &format!("  - {}", sub_prj.title));
-                print!(" [{}]\n", sub_prj.id);
+                println!(" [{}]", sub_prj.id);
             }
         }
     }
diff --git a/src/ui/task.rs b/src/ui/task.rs
index 166e57f..3532ed1 100644
--- a/src/ui/task.rs
+++ b/src/ui/task.rs
@@ -1,6 +1,6 @@
 use crate::{
-    api::{Label, ProjectID, Task, VikunjaAPI},
-    ui::{hex_to_color, parse_datetime, print_color, print_color_bg, print_label, time_since},
+    api::{ProjectID, Task, VikunjaAPI},
+    ui::{parse_datetime, print_color, print_label, time_since},
 };
 
 fn print_task_oneline(task: &Task, api: &VikunjaAPI) {
@@ -30,7 +30,7 @@ fn print_task_oneline(task: &Task, api: &VikunjaAPI) {
         }
     }
 
-    print!("\n");
+    println!();
 }
 
 pub fn print_current_tasks(
@@ -57,27 +57,20 @@ pub fn print_current_tasks(
 
     if let Some(project) = project {
         let p_id = ProjectID::parse(api, project).unwrap();
-
-        selection = selection
-            .into_iter()
-            .filter(|x| x.project_id == p_id.0)
-            .collect();
+        selection.retain(|x| x.project_id == p_id.0);
     }
 
     if let Some(label_match) = label {
-        selection = selection
-            .into_iter()
-            .filter(|x| {
-                if let Some(labels) = &x.labels {
-                    for label in labels {
-                        if label.title.trim() == *label_match {
-                            return true;
-                        }
+        selection.retain(|x| {
+            if let Some(labels) = &x.labels {
+                for label in labels {
+                    if label.title.trim() == *label_match {
+                        return true;
                     }
                 }
-                false
-            })
-            .collect();
+            }
+            false
+        });
     }
 
     for task in selection {