How to trick yourself into getting more exercise

I still owe blog posts on Ludum Dare 23 followup, and my presentation at KWLUG. I haven't forgotten. I'm sure I'll get around to them eventually.

Yesterday, I biked to work. Near the end of the day, My brother called, saying that he wanted to pick up some boardgames for a gaming night he was going to. Of course I agreed, and said I could get them to him faster if he gave me a ride home (forgetting that I had biked to work).

Realized half-way home that I had left my bike at work. So now, I'm about to run to work to pick up my bike, which I will then ride home. At least I'll be getting my exercise in!