Those packages of pre-sliced apples you can buy at store are great for a healthy snack on the go but the price can add up. Make your own by slicing apples, soak in cold water for 3-5 minutes, then soak in a lemon-lime carbonated soda (such as 7-up or sprite) for 3-5 minutes. Divide into snack size portions and store in Ziploc bags in the fridge. The lemon-lime soda will keep the apples from browning and make them last longer. LOVE THIS IDEA! Doing this this week! My group loves their apples and this is so much cheaper.