I'm a very good speller. I don't say this to brag, because it ain't braggin' if it's true, but also because I don't think it's an indication of intelligence or anything except that I happen to be able to do it. It's a knack. Some of the smartest people I know, way smarter than I, can't spell for beans.
But here are some words that just don't come automatically, and always make me pause, if only for a split second.
It's the double letters.
(I know: Most. Boring. Post. Ever.)