If you carry around a big wallet in your back pocket, you likely spend at least a few hours every day sitting on that wallet. The bigger your wallet, the more displaced your hips become while you sit, and the more your back, neck, and shoulders have to compensate. Over time, this can cause a slew of issues. Basically, those wads of cash you carry around are just going to be handed over to your chiropractor instead of stashed safely in your bank account. You won’t have to deal with this if you’ve got a slim wallet.

did you know that it’s much safer to keep your wallet in your front pocket? The risk of your wallet being stolen increases greatly when it’s in your back pocket. It’s a lot more difficult to keep a fat wallet in your front pocket, so by slimming it down, you’re decreasing that risk. Additionally, a slimmer wallet tends to mean less cash, which you can’t just cancel and replace the way you would with a credit or debit card if your wallet were stolen. (And for those concerned about being digitally pickpocketed, there are a host of slim wallets available with built-in RFID protection.)

While there are a variety of wallet materials out there, leather continues to be one of the most favored for its durability and supple texture. Many people don’t realize, however, that a leather wallet will stretch according to what it holds, and it's difficult to get it back to its original shape. So, an overstuffed wallet will generally stay that way—your fat wallet might shrink to a medium wallet at best. In contrast, you’ll never have to worry about a wallet being too big for its contents if you never overfilled it to begin with.

Studies have shown that decreasing clutter in your life results in improved happiness. While you might not think a wallet would have much to do with that, it’s actually the best place to start; it’s small, easy to organize, and is used every day. Check out our step-by-step guide on minimizing your wallet’s contents and see how much happier it makes you.

Whether you have a fat or slim wallet is probably something you really don’t spend much time thinking about. But at the end of the day, trading out your dad wallet for a sleek, minimal wallet will improve your health (both physical and mental), increase your safety, and save you time and money. If you were looking for a way to enhance any of those aspects of your life, consider this your wake-up call: drop the fat wallet and grab yourself a slim wallet now.