Freeze them for pies.
Peel and core the apples. Slice them up the way you like them. Bag them in freezer bags, enough in each bag for a pie. I like to put 7 cups of apples in each bag. Then add to the bag about half the amount of sugar and spices that you will want to use in your pie. Shake it up. Make sure to squeeze as much air as possible out of the bag as you seal it. Freeze.
When you want to bake a pie, pull out a bag and let it mostly thaw, add the remaining sugar and spice and pour it into your pie shell.
It's also great to have frozen apples for adding to oatmeal, or using in a pork dish. I keep tons on hand. Great for topping popovers for Sunday breakfast.