I've only been here a short time, but while doing my stretches my hands keep slipping off. Powder works ok, but then sometimes my hands get sweaty. So here's what I tried:
do the stretches wearing a latex glove
They grip hard so don't pull your skin off.
It depends. If penis size were something as simple and non-offensive at your age, height, etc., then women knowing that beforehand could definately help. But you can't go to a bar or whatever and advertise your penis, so you have to be socially skilled enough to get to that point. That is...