This was discussed a little while ago here, but I never saw an official Wish List request.

So, I'd like to see an option for Never Randomize Playlist. I have certain playlists (mostly DJ mixes) that I don't want randomized. So, if I happen to have the Shuffle mode on when I select this playlist, it will play that playlist in the proper order.

We should also implement the other suggestions in the thread regarding sub-playlists.