I've got lots of pet peeves... probably too many!

Here are three that really get me:
1) When people say "irregardless" - there is no such word! It's "regardless."
2) When people say "It's hotter than Haiti" - the saying really is "It's hotter than Hades" (as in the Underworld from Greek mythology).
3) When I find a typo or misspelling in a book... it happens more often that I would have thought!