What's a good iOS app for keeping track of all my yoga classes and the senior fitness programs at the community center? I'm always losing those paper schedules.

Well, I've been trying out Mindbody, and it's been surprisingly useful. You see, I'm always misplacing those printed schedules for my yoga class and the senior fitness programs at the community center. This app lets you search for classes and then save them right there. It even shows you what's nearby, which is handy because sometimes I forget where I signed up! It took me a few days to figure out all the features – why do they hide the settings button there? – but once you get the hang of it, it's like having a teaching assistant in your pocket, reminding you where you need to be. My students showed me this trick for setting up reminders, which has been a lifesaver. I haven't missed a class since! It's even helped me discover some new tai chi classes nearby that I didn't know about. It's been a real organizational tool for me, I must say.