I have a 'training bike' I bought from Kmart for $80, which is really compact and sits next to the couch so I can watch TV while I'm exercising, or spread a newspaper out on the arm of the couch and read it. It's not the best quality, but using it for 30-45 mins a day combined with doing some light weight work in front of the TV (2kg weights for around $10 each from Big W) and sit-ups, push-ups etc on my living room floor, I've lost 8kgs so I'm just over halfway to my goal