MicaPie tipped me off about the Holiday Bootie Buster Challenge hosted by Run to Finish and I do like a challenge... so I joined in on the fun. One time I had a competition with a friend to see who could workout more.. and let me tell you.. it didn't go so well. I was running and she was using the elliptical machine. We were competing to see who worked out the most via minutes. I am glad to see the HBBC has a point scale. :)