So we had In N Out last night and I was starving. So I wanted 2 burgers, but the ones I get are 4 dollars a piece. That is the double double they have, in my opinion one of the best burgers on the market. Well I tried to save some money as I upgraded the double double to a 4x4 instead of getting another sandwich. The Cost was only 2 dollars instead of another 4 for a sandwich. Well it hit the spot, but I also learned that 4x4 is about the biggest I can go if I still want to take a bit without hurting my jaw. I could barely get a normal bite motion on it. So if you are hungry and want to save a few bucks maybe throw some extra meat on your current sandwich.