I ended up doing 45 minutes on the indoor trainer today. I have been having problems with my Rivet Indy saddle and adjusted the tension on it to try to make it more comfortable. I was going to go out and run errands, but decided to ride the bike instead and test the adjustment. It seems to have worked, though I might tighten it a bit more.

I did a music workout on the trainer, big chain ring for one song, small ring for the next, etc.