Grammatical Pet Peeve
"You and I"
Sometimes this is correct, as in "You and I went to the store."
However, if you say "Let's keep this between you and I" you're just being pompous. It's "you and me." Stop trying to sound smart by replacing your me's with I's. It's bad enough when you (generic you, not you who are reading this) are wrong, but don't compound your "wrongness" by trying to sound like a smarty.
Rant over.
(Please don't point out my hypocracy. I know my that grammar isn't perfect and that my spelling is worse. This is my blog, and I'll rant when I want to rant!)