Besides using potato water to cook and bake with, if you peel your potatoes for any reason, save the peelings for a snack. Why not? Potato peels are sold as snacks in the store, so why throw yours away?
Be sure to wash the potatoes thoroughly before peeling them and try to keep the peelings as large as possible for easier handling. As you work, drop the peelings in a bowl of cold water.
To make them, drain the water and let the peelings drain for a moment. Preheat the oven to about 400. Drizzle just a little oil over the peelings and toss to distribute, then put them in a single layer on a cookie sheet and sprinkle salt over them.
Bake just a few moments, checking every five minutes or so, until they begin to brown and crisp. Remove and cool and there you have an expensive snack, for all practical purposes, for free.
Note: Alternatively, you can deep fry them like french fries or potato chips, but unless you're peeling a LOT of potatoes, it's probably not worth it.