One of the things I do to stay sane is a bit of simple strength training, usually just push-ups (both one-handed and standard) and pull-ups. I've had great success with push-ups; before I went on this last vacation and completely failed on my routine, I was over 70 normal push-ups in a row. My goal is to hit 100 before I go home, and so long as I don't get too lazy, I reckon I've got a good chance.
With pull-ups though, it's a different story. My goal is 30 in a row. I have never in my life done more than 23, and for basically the whole of my service I've been stuck around 20. I usually work out four times a week, and I've done three sets to failure, added weight, tried "greasing the groove," all to little effect. (All those things, by the way, worked quite well for push-ups.) I rather suspect I'm not eating enough protein. Any thoughts out there?