My very simple, cheap, fun exercise is dancing. I put on my headphones in my room and dance.

I use playlists to get around a few problems. One has long songs, for when I feel okay physically but I'm having trouble wanting to do it. I can agree to one or two songs.

I've also got a playlist of short songs, when I want to be able to alternate dancing and resting.

I have one of slower songs for when I'm not feeling well and I want to make sure I don't over-exert or hurt myself, but I still want to get up and move.

And I have a list of my current favorite songs, for when I can't make up my mind about which playlist to use.

I started with my favorites, since I could make that playlist really fast. It took me a while to set the others up, but they mostly involved me sorting my music collection by song length and going from there. So it wasn't too hard.