Add buttons and fake items.

lib/main.dart

@@ -123,7 +123,19 @@ class ExpensePage extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    return ExpenseInputForm();
+    return ListView(
+      children: [
+        ExpenseInputForm(),
+        ListTile(
+          title: Text("Fake Item 1"),
+          subtitle: Text("30.00 / month"),
+        ),
+        ListTile(
+          title: Text("Fake Item 2"),
+          subtitle: Text("180.00 / year"),
+        ),
+      ],
+    );
   }
 }
 
@@ -139,7 +151,7 @@ class ExpenseInputForm extends StatefulWidget {
 class _ExpenseInputFormState extends State<ExpenseInputForm> {
   @override
   Widget build(BuildContext context) {
-    const inputWidth = 400.0;
+    const inputWidth = 300.0;
     const inputHeight = 50.0;
 
     const recurrenceValues = <DropdownMenuEntry>[
@@ -189,6 +201,28 @@ class _ExpenseInputFormState extends State<ExpenseInputForm> {
                   labelText: "Description",
                   hintText: "Example: 1GB data with unlimited talk & text."),
             )),
+        SizedBox(
+            width: inputWidth,
+            height: inputHeight,
+            child: Row(
+              mainAxisAlignment: MainAxisAlignment.spaceEvenly,
+              children: [
+                ElevatedButton.icon(
+                  onPressed: () {
+                    print("TODO: Clear fields!");
+                  },
+                  icon: Icon(Icons.cancel),
+                  label: Text('Cancel'),
+                ),
+                ElevatedButton.icon(
+                  onPressed: () {
+                    print("TODO: Save expense!");
+                  },
+                  icon: Icon(Icons.save),
+                  label: Text('Submit'),
+                ),
+              ],
+            ))
       ]),
     );
   }