I wish it were that easy. I need a lot of card slots for what I carry everyday... driver's license, CCL, credit card 1, credit card 2, student ID, Sam's Club membership card, insurance card, insurance agent's business card, library card 1, library card 2, Qdoba rewards card, coffee shop punch card, range punch card, amateur radio license... and a few bucks. If I could trim it down I would, but it all gets used regularly.
I just looked at mine: Cabela's card, ATM card, Health Ins card, Qdoba card, DL, CCW, Costco card and a Lowes gift card (probably the only extraneous card in the bunch).
I keep my library card with my Kindle.
My Range membership card is in my shooting bag.
My car insurance, coffee cards, etc are in the visor pockets of my car.
Pretty much everything else is kept in my sock drawer at home with a rubber band holding it together.