diff --git a/src/main.rs b/src/main.rs
index cd46cd7..7793f0f 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -129,23 +129,22 @@ fn get_layouts() -> Vec<String> {
     let mut layout_names: Vec<String> = Vec::new();
 
     // Get the names of monitors that are available (that match a current output)
-    let mut available_monitor_names: Vec<String> = Vec::new();
-    // TODO do this with iterators
-    rules.monitors.iter().for_each(|(monitor_name, monitor)| {
-        if available_outputs.iter().any(|output| {
-            monitor.make == output.make
-                && monitor.model == output.model
-                && output.serial == monitor.serial
-        }) {
-            available_monitor_names.push(String::from(monitor_name));
-        }
-    });
+    let available_monitor_names:Vec<&String> = rules.monitors.iter()
+        .filter(|(_monitor_name,monitor)|
+            available_outputs.iter().any(|output|
+                monitor.make == output.make
+                    && monitor.model == output.model
+                    && output.serial == monitor.serial
+            )
+        )
+        .map(|(monitor_name,_monitor)| monitor_name)
+        .collect();
 
     // Add each layout defined in the config file for which all outputs are available
     rules.layouts.iter().for_each(|(layout_name, layout)| {
         if layout
             .iter()
-            .all(|(output_name, _output)| available_monitor_names.contains(output_name))
+            .all(|(output_name, _output)| available_monitor_names.contains(&output_name))
         {
             layout_names.push(String::from(layout_name))
         }