Ok. I did it. I signed up to walk 60 miles in 3 days. What was I thinking? Oh yeah, I remember now … it’s for a “good cause”. But aren’t there a buzillion “good causes” out there all vying for my time and money? You bet there are (oh yeah, I also remember I’m not a betting person – oh well.) So why did I commit to this one? A few weeks ago I heard a radio ad for this 3-Day walk thing. I thought, it sounded like a cool thing to do. The one in Dallas/Fort Worth is not even until November! I have plenty of time to…