My son doesn't like the crust either. And he'll only eat a plain peanut butter sandwich. In the morning madness at our house it became my ritual to cut his sandwiches using the rim of a large glass. It helped me shave time off of an already busy morning and it was less waste. And...it made a perfect round circle sort of like a premade sandwich that one can purchase at the grocery store. Last winter, my son participated in a youth wrestling program. At one of his tournaments he got in our cooler and picked up his sandwich. My father in law saw the sandwich and was so upset, thinking that I had paid for a peanut butter sandwich...ala the "uncrustable". It took me the better part of the day to convince him that I hadn't bought a peanut butter sandwich! I eliminated the urge to eat the crust by giving them as treats to the dog in the morning.