So how often do you reach into the pantry and find the kids have left a package of cracker opened up and they have now become stale and soggy instead of the nice crispness you love? Here is a quick tip on how to save those crackers and even potato and corn chips. Spread them out on a cookie sheet in a single layer and put them into a 400 degree oven for about 5 minutes. The heat will dry them out and crisp them up. The oil in the corn chips and potato chips will actually start to refry them slightly, like taco shells when you heat them up before eating. Keep an eye on them to be sure they don't burn.