I had never thought about the way I cut apples until a good friend of mine watched me cutting them for a pie and asked me about it. She wondered why I did it that way and all I could say was that's how my mom taught me to do it, once upon a time.
Much later, my mother informed me that she had watched part of a cooking show where the chef demonstrated our way of cutting apples and said it was the most efficient way to cut them. My mom and I already knew that from experience, but we didn't expect a professional chef to know it! (Well, okay, we didn't really think about it.)
Such a little thing, but I felt validated. And I thought it would be fun to share.
So here is another chef demonstrating this technique (the only thing I don't do is cut off the little end at the beginning):
How to Cut Apples -- powered by ehow