those of us with ocd tendencies really thrive on challenges. a personal challenge that i've tried now and then over the last few years is to walk 26 miles, a marathon, in a week. this can be quite challenging! doing the math here, that's approximately 3.75 miles a day. i finally managed to hit the 26 mile mark again in early may and i've been going strong ever since. in fact, i've been doing so well that i think i need to up the challenge to two marathons a week just so i'm challenged! of course, this will all change when school starts back in the fall, but i'm trying not to think about that just yet.