Replayify - Create playlists from your most played Spotify tracks
Muzzy - it’s a tiny and gorgeous iTunes companion that lives on your menu bar. For Mac OSX, its free!
Jott - Fast, local, linked notes
SpotiMy - Play/Pause and Next/Previous functions for Spotify directly on your Menu Bar!
Kindrd - Discover connections between music, movies, books & places
Tabler - Admin panel made simple