I had to take a break. I strained my lower back really bad during the last workout I did on 2/1/2007.
I didn't do more weight than usual for me or anything, but I'm guessing when I did the Leg Press sled, my form was poor and I rounded my lower back and didn't keep it tight against the seatback. Either way, I hurt myself very bad and I spent the next 2 weeks recovering. I was out of town a week as well. Then, my workout partner was out of town a week. So, it's been a crappy 3 weeks of no workouts, but we did get back to it today.