I started today getting mad at the Spotify android app on my ICS device. Granted - I'm lucky, mine works, but it's still so poorly designed and frustrating to use, it's missing features and is just plain ugly.
So I redesigned it for fun:
EDIT: I just realized I put this in the wrong place - I've created a new topic over in the ideas forum, please feel free to merge this or delete it outright, thanks! :)