Since the end of January, I've been dieting and exercising more. The exercise primarily consists of riding my bike, which is set up on a mag trainer, for about 30 minutes a night, fairly strenuously (at a cadence between 85 and 120). I'm currently down about 40 pounds over that time. I may just need to celebrate by treating myself to one of these:
These things look totally awesome, and way more comfortable than a regular trainer.