Working out can be as simple as walking. I lost about 50 lbs just by walking along a ocean trail that was 4 miles. Did it everyday, twice on the weekends. Double chin melted, I could see what muscles I had left, and eventually built up the strength to jog the entire trail...in the sand!

You don't have to go to a gym everyday...park further out in a parking lot, walk around a mall just for fun, use the stairs instead of an elevator. Simple things like that will help keep your body in some shape without over exerting.