I love, love, LOVE bags that thank me and wish me a pleasant day. Especially when they're burrito filled and handed over by the "No hablo Ingles" delivery man. Exquisite entrepreneurial manners at their finest, if I do say so myself.
Just think, if everyone was forced to sack their wares in these bags the world would be cured of buyer's remorse, depression, eating disorders, and rosacea! Support our Troops!