I carry a standard leather wallet and keep all my cards in various pockets, using the outermost slots for the cards I pull out most = gas, credit card. library card, driver's license, debit card.
I carry my health insurance card with me, because your gonna want that if you get yourself into a medical situation/emergency.
Also carry a few business cards I collect, but have to clear these out every so often, otherwise things get bulky fast.
A few years ago I started carrying my wallet in my left hip pocket. Sometimes would jab the buttocks or even put 'em to sleep. Was thinking' this couldn't be good for nerves, or spine, or posture. Must say keeping back pockets empty works well!
Do not carry your social security card in your wallet. duh. Just like you don't keep your car title in the car.
So my Social Security Card is like the title to ME?