Cardstar, a free app that consolidates your reward cards Google Wallet, an free app that allows you to transfer money to anyone with an email address and can store and consolidate most of your cards Key Ring, a free app that stores loyalty, membership, or library cards as well as coupons, grocery lists, and weekly store ads
As an exception, keep extra cash in your wallet that you anticipate spending in the near future (e. g. money to use at a yard sale).
