I never, never bring a bag or anything I have to carry.
Money, cards (debit card and pass), keys, and phone in zippered shorts pockets.
I consider these preparations to be enough to earn the right never to mess with a locker, and I deeply resent SFGAdv forcing me to do so anyway (when I was at CP this summer, they hadn’t yet started forcing people).
Btw, SFGA is an ambiguous abbreviation. I’d suggest SFGAdv, SFGAm, or SFoG.