Wallet fillers are items that are typically found in a wallet, such as bills, coins, PHOTOS, and other small items. Bills are five-letter words that refer to paper money, such as dollar bills. ONES are four-letter words that refer to coins, such as pennies. Tens are also four-letter words that refer to coins, such as dimes. PHOTOS are six-letter words that refer to pictures, such as driver's license PHOTOS. All of these items can be found in a wallet and are commonly referred to as wallet fillers.