There are many apps and websites that make holiday shopping more affordable. One is RetailMeNot, which has both an app and a website. It lists deals and promo codes at top retailers, both online and in-store, and can save you big bucks on holiday gifts. It also has cash-back offers for certain retailers. Another great site to try is Ebates, which has cash-back offers at thousands of retailers, giving you savings in the form of rebates. Sometimes they also offer exclusive discounts.