Just make sure that you use your snack credits wisely. A single banana is a snack credit ($1.00), but so is a lovely large caramel apple ($6.00)! I always want to get the MOST bang for my buck. One of our favorites is the Cronut in Epcot. (close to Canada pavillion)
Keep your eye out for the symbol where food is sold to see if it is covered on the dining plan.