I keep it simple... have my "riding" wallet as opposed to my everyday wallet... My riding wallet has only motorcycle papers , ID, and a few bucks just in case...:2thumbs:
Back of the storage roll in a zip lock, thankfully never had to use it. Probably will move to small tool roll which is on the sissy bar and has actual tools
Wallet, regular size, leather, with closing snaps.
But, I grew up a city kid. I carry any cash in front pocket (harder to pick-pocket that way). I also put a wide rubber band around the wallet- makes it harder to fall out of the back pocket (and harder to pick-pocket too). I do use a wallet chain when I ride.