If you are one of those users who has a lot of music stored on your PC, maybe it drives you mad that it takes ages to find anything when you want to listen to something specific.
For this case you have MP3Toys, a magnificent music manager-cataloguer that lets you order your music into albums according to music genre, year or folder location.
With just one click you can play the album (or all the albums) of an artist, create playlists via drag and drop, or leave the program on random play.
The MP3Toys interface is excellent, colourful and even lets you edit the colours, including its own label editor.