Simple Rule When Encountering A New Fruit Or Vegetable.

You know from time to time we all encounter a new fruit or vegetable. And I think I have found a rule that works every time in its preparation. Usually. Simply cut off either end and peel it (after you wash it of course).

It certainly works with the fruits/vegetables I know of. Cutting off either end of a potato makes it easier to peel. Also the ends tend to get stale or soft. So cutting off either end is always a good idea I think.

This rule would never work for grapes of course. Apples you peel, but you don't cut off either end. Artichokes, I don't even know how they're used. So I don't know what rules would apply.

But is this a good general rule? Or do you know a better one?