Get out your knitting needles. An afternoon of knitting can burn more than 500 calories (at a rate of about 100 an hour).
via health.msn.com
This is some of the best news I have heard this year so far.
Another great thing about knitting - you really can't snack and knit at the same time so it keeps you from grazing. Considering it also keeps your brain working and has been show to possibly delay age related dementia, and keep hands limber from arthritis, you really can't go wrong.
Want to learn how to knit? Check out YouTube. I love the KnitWitch's videos. You can have your laptop in front of you and just copy the movements on the video. Instant free knitting lessons!