Your excuses demolished here

If you live less than five miles away from your workplace, bike commuting will be easy for you. If you live between five and ten miles away, it'll be harder but it's still within your reach. If you live 20 miles away from your workplace, you're excused

Try riding to work once on the weekend, just to see how far it is and how long it might take you. You might learn that it's less work than you thought.

You'll get in shape really fast. And while you're getting in shape, there's no reason you can't take it slowly. Or stop a few times to catch your breath. Or walk the bike up that tough hill. You'll eventually be riding up. Really.

Cycling is easier on out-of-shape people than many aerobic sports. It's not a load-bearing exercise. You're not standing the whole time. Cycling is also low-impact, unlike exercises like jogging. Cycling doesn't stress your knees. Instead, it's good for them!

Yes, you probably will. So wear a t-shirt and carry a change of clothes. Your workplace might even have showers. If carrying extra clothes is a nuisance, try stashing a week's worth in your office on Monday. Carry them home to be laundered on Friday.