Sign up for a Walmart Discover® or Walmart Credit Card and receive a $25 statement credit when you make a single-receipt purchase online at Walmart.com of at least $75 the same day you open your account. (The credit will appear within 1-2 billing periods.) Plus, save 5 cents per gallon at participating Walmart gas stations in the U.S.. Other card features include cash advances at in-store registers in the amount of $60 or $100. (One per day.) Also, there's no annual fee. For more terms and conditions, click here.