My wallet contains:
American Express - Company Credit Card
Visa Check/ATM Card
Driver's License (mainly so I can buy alcohol)
Visa Credit Card
Health Insurance Card
Club VIP Card
RFID Card for Access at Work
Pair of disposable flat eye covers for tanning (I never wear them, but if they ask me to show them - I got 'em BIATCH)
Traces of illegal substances
My Cash goes in my money clip - can't stand bulky wallets... this is the wallet I use: