I still haven't been able to go beyond 50 push-ups in a single set.  It's a bit discouraging that I feel like I've hit a bit of a wall.  I'm not sure if I should be forcing myself to do more reps each time or if I should go beyond the 100 per day in the challenge to try and help me get over this hurdle.  Admittedly a good night of sleep and a healthy breakfast would probably go a long way for me, but I'd rather a solution with some force.  Maybe I'll continue working in other workouts and hope that it takes care of itself eventually.  I'm not going to worry about it too much as I just wanted to hit 50 at once by the halving, but I feel like I'm going to need to hit another gear in order to reach 100 in a set by $100K, which I now believe we'll see in July.