Always store potatoes in a cool dry place, and never in the refrigerator, which converts the starch to an unpleasant sugary taste. If you buy potatoes in a plastic bag, dump them into a storage bin or into a paper bag. This will slow the sprouting. And don't store your potatoes right next to your onions, which can speed up sprouting. How you cook them is up to you.
Few foods have the versatility of the potato.
Even a seemingly simple recipe such as mashed potatoes is open to a huge range of interpretations, from milk or cream to buttermilk, chicken stock, roast garlic, chipotle pepper, pesto, and so on. And when you branch out into other cultures, you have potato curries, cakes, stir-fries, soups, gratins, fritters, breads, and endlessly more. And everyone has their own favorites. I also like roasting them with rosemary and whole peeled garlic. Cut onions the same size as potatoes, whether in cubes or wedges or large dice.