ComboBox WPF with 10 item history

//Will redo in MVVM later, but the quick and dirty method
//Will also add autocomplete later
//In View.cs:
public NovellDesktopView()
        {
            InitializeComponent();
            NovellHistory.ItemsSource = Settings.NovellHistory;
        }

        private void Run_Click(object sender, RoutedEventArgs e)
        {
            var history = Settings.NovellHistory;
            Settings.NovellHistory = AddHistoryItem(history, NovellHistory.Text);
        }

        private List<string> AddHistoryItem(List<string> input, string item)
        {
            var output = new List<string>();
            output.Add(item);
            output.AddRange(input);
            if (output.Count >= 10)
                output.RemoveAt(9);
            return output;
        }

//In Settings.Designer.cs
        [global::System.Configuration.UserScopedSettingAttribute()]
        [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
        [global::System.Configuration.DefaultSettingValueAttribute("")]
        public System.Collections.Generic.List<string> NovellHistory
        {
            get {
                return ((System.Collections.Generic.List<string>)(this["NovellHistory"]));
            }
            set {
                this["NovellHistory"] = value;
            }
        }

//In my Settings.cs class (because I hate typing out Properties.Settings.Default.SomeSetting)
        public static List<string> NovellHistory
        {
            get { return Properties.Settings.Default.NovellHistory; }
            set { Properties.Settings.Default.NovellHistory = value; Properties.Settings.Default.Save(); }
        }