What exercises can I lose thigh and stomach fat indoors without spending any money?

I’m a little chubby in the tummy and thigh area. I’m an indoor, busy person who doesn’t have time to go out to exercise. I don’t want to spend money on drugs, exercising videos, and any other sort of equipment. What exercises can I do indoors that can help me lose the fat in the stomach and thigh areas, or, if that’s not possible, all the areas altogether?