Or (one of my bugbears which are often used incorrectly: There (indicating place), their(possessive adjective) and they're (they are)
as in
"They're leaving their umbrellas over there".
And not forgetting its (which is a possessive) and it's (it is). And the incorrect use of the apostrophe in plurals - such as "Our Menu's"
(And starting sentences with a conjunction - which I have done several times in this post)
And starting a sentence with 'Like" unless it's the start of a question as in "Like to go windsurfing tomorrow?" with the implied 'Would you' at the start.
/rant