I recently got back to they gym on a regular basis, after a long long long hiatus. Anyway, when I used to work out before, I didn't know anyhting more than lifting weights. And even that I did poorly. So my question is this; For those of you who work out on a regular basis (3-4 timer per week) what and how much supplements do you take, protein, nitrus oxide powders, creatine, l-arginine etc? and what have you noticed since you started taking your chosen supplements vs. when you weren't taking anything? I do eat well, I try to limit sugars, and fats, so my diet is good. Also, when do you switch up your workout routine so you can prevent the dreaded plateau, and how much of a change do you have to make inorder to prevent it. Thanks!