We've all forgotten our wallets at home, but with RFID, there is nothing to fear! Without realizing it, most of us are actually carrying around a miniature RFID reader in our pockets, which can be used as a digital wallet. Many iOS and Android smart-phones have an NFC (near field communication) reader inside them. What it means is that, in the case of forgetting a wallet, you can still use the wallet app connected to your debit card and be able to use your phone for contactless, secured money exchange. RFID is a technology that exchanges data, so as you can see, you are using RFID through your transaction by exchanging debit card information to purchase a loaf of bread at the grocery store.