Little Irritants

Are there some things that just really annoy you. Spelling and grammatical errors on public documents, like signs, billboards, and menus really get on my nerves. My most hated transgression is the inappropriate use of the apostrophe. If you have an apostrophe-s on the end of a word ('s), then that makes the word possessive, not plural. For example, I saw a menu from a small cafe that read "3 taco's, beans, rice, and salad" What is it that the tacos have? Do the tacos own the beans, rice, and salad? I have seen this way too often lately. I saw it on a sign at Fort Clark Days selling "Coke's - $1" Does the Coke get the money when you pay for it?