Remember this rule, if nothing else, the smaller your wallet is, the less you will carry. I don't even recommend using debit cards at all. Of all the necessary things to carry in your wallet, this one has to top my list. It will also compound the hassle should your wallet … And for emergency purposes, our parents said, carry a blank check in your wallet… Here is a list of the 6 most essential things to keep in your wallet… In any case, this is what probably 90% to 95% of us use, but there are a lot of other options out there, so here's a variation on the billfold. With this nifty little credit card sized light bulb, you’ll always have light at your fingertips. I have used a thin piece of cardboard. More than a few credit cards. Of all the things you can lose control of, your nine-digit Social Security number might be the most damaging. Africa Studio/Shutterstock. Learn about these 12 items you should never carry in a purse too. There’s not much I change about the contents of my wallet when I travel abroad; if I do make a change, it’s usually to swap in a new metro card if anything. Old school, yes, but some of us still write checks, though far fewer than back in the day. But generally, I take the whole shebang. The number one thing you should not carry in your wallet is your social security card. Basic Billfold. However, most of us carry way to many unnecessary things in our wallets. 7. Extra credit cards. Clearly, you can’t rely on tellers to protect your money. Wallet Types . So just about the only thing I’ve learned from this is that figuring out what to carry in your wallet is more art than science. Read on to learn what you should never keep in your wallet. Here are 10 things you should keep out of your wallet as much as possible. The project is a way to carry these 10 coins easily inside your wallet. Carry a debit card, not checks. 1. The fewer debit and credit cards you carry with you, the fewer you'll have to freeze or cancel should your wallet disappear. It contains some of your most essential items. I cannot count the number of times I have been left wishing I had a light handy but was left in the dark. Kiplinger Personal Finance has released a list of things you should never carry in your purse or wallet, due what could happen if it is ever lost or stolen. But if you may use most anything, I recommend any material about 2 stacked coins thick, and have enough friction to hold the coins in place. Now, it can be a bifold or it can be a trifold. A wallet is likely the most important piece of every day carry you have. To hold it all, a simple slim wallet is good, or just a card case or money clip, but never, ever carry a tri-fold wallet, as “it does not belong on a human,” according to Hanshaw. If it gets into the wrong hands, it can be used for everything from buying a car to opening a …