Today, Tuesday, May 31, SONIC Drive-In is offering cheeseburgers at 50% off at participating locations. Prepared with 100% pure beef, cheese and fresh ingredients, each burger is made to order. (If you don’t like cheese, just order one without the cheese and you can still salivate over the savings.) At this price, everyone in your family can chomp on a “cheap” cheeseburger without breaking the bank. Limit 5 per person — must mention offer, when ordering. For locations, click here.