I could easily be accused of overcompensating for my disability; I vigorously strive to find exercise I can sustain into my old age. Currently I do quite a few body-weight resistance exercises: push-ups, situps, office furniture curls, etc., and for cardio I do a lot of walking (thanks podcasts). In the course of this ongoing exploration, I do a lot of measurement: weight, percent body fat, monitor step counts and heartrate, this is the fun part for me. Monitoring and viewing data is a hobby of sorts. I try to take the information and ascertain what the most efficient exercises are.
In addition to conventional resistance and cardio, I seek unconventional activities based on snippets I read. A week ago, I walked an hour a day carrying a 20 lb backpack based on this report. It was an interesting way to beef up a cardio routine; my knees hurt a little, but I might try it again, it was a pretty serious workout and required no gym and no time out of my tight schedule.
This week's pursuit is a little odd too. A look through Google Scholar revealed exercise researchers are pretty interested in our society's habit of excessive sitting allllll daaaay loooong. On this one, I only made it to a 3rd day. At the end of that day, I was in quite a bit of pain. I developed a special appreciation for anyone doing real work during the day instead of the namby pamby act of slinging data. I considered myself pretty fit until this. I believe the pain is from my particular condition, and it's not sustainable for me, but I really found it a good feeling in my upper legs.