I prefer the debit card, but I've always kept my large bills on the inside and small bills on the outside.
Sometimes I'll separate my cash and keep some in one pocket/place and some in the other. Some in the glove box. Some in my wallet. Especially if I have over two hundred that I don't intend on spending within the next couple hours. Its pretty cool cuz whenever I'm broke for 3-5 days straight and shit gets real messy, I always seem to find a 5 or a 20 and I actually need the shit at the moment.
I got no interest in letting the world know that I'm holding a decent amount of money. My boys ran down too many wannabe gangsters selling weed and flaunting their cash when we were in high school for me to end up getting my face split for the same damn reason.
Today though, I'm a grown ass man. Unless it's drug money, I'm giving somebody money (usually my mom) or I'm handing it over to a tattoo artist... my money stays in the bank.
I get points for using my debit card and they give me free shit.