Want to really upset any chrome palace chain gym, with their rules restricting serious workouts, than use old fashion pine tar on your hands. Hard to get that stuff off BB's, DB's, machines, after using. They will remember you..forever.
We us a powder box (as do gymnastic), also have chalk blocks. Some guy's plaster the chalk on the front of their shirts & thighs. Idea being that the bar will slide by better when doing cleans or Hi-pulls. On the legs for Dl's. That's their theory, anyway. I prefer a regular chalk stick, which must be reapplied after each lift, for me anyway. Good Luck.