The things I hate are legion - I noticed before Christmas people were saying 'I'm so excited for Christmas'. Where did that come from and when? It's 'I'm so excited about Christmas'. I can be excited for you, if you are doing something out of the ordinary, but not for the thing itself. Increasingly I hear the 'n' dropped from the indefinite article before a vowel sound, giving 'she was a important person', for example. People don't seem to understand the difference between count and uncount nouns and how we use them, so they say 'an amount of people' when they should say 'a number of people'. I suppose I should be grateful not to have yet heard 'a number of sugar/wine/hope' or anything else you can't count.