I only have one spelling mistake that pesters the hell out of me when I see it. Because I see it over and over again.
It's "lose" damn it! not "loose"
what the hell are you going to say for the past tense?
We "loost" that game? You sound like a damn Canuck! (no offense Thrawn et al!)

Now that's a pet peeve, something so minor yet pisses you off so much.
