FREE Lettuce Wrap at PF Chang's

Near a P.F. Chang's? Well Tomorrow, July 6th, they are giving away FREE lettuce wraps! I have NO idea what a lettuce wrap is.. but it really makes me wonder! :) There is not one around here that I know of! I do know there is one in Maryland right down the road from my mother-in-law's so I think we shall be paying them a visit!!!! :)