NATIONAL - Many shoppers are gearing up today for a Christmas in July type of experience. 

Prime Day celebrates Amazon's 20th anniversary with a sale online for members of their paid "prime" service. 

Shortly after Amazon revealed  discounts for "Prime Day" Wal-Mart announced its own discounts, saying  people shouldn't have to pay a fee to get a deal. 

Walmart's sale will last 90 days.