New Mail Notification in the Menu Bar!
This is a pretty cool add-on that will add Mail's main features in your menu bar. It is called ManilaMail. You can also very quickly see when there is new mail (very useful if your dock is hidden and you cannot see the Mail icon). It also gives you a quick access to retrieve new mail, to go to your inbox or to compose a new email. The app is great because of how simple it is. It doesn't add any icon in the Dock and if you don't want to have to worry about it, you can select "Open ManilaMail on login" in the Preferences. You can download ManilaMail here on MacUpdate.