I'm more irritated by the greengrocer's apostrophe, as used even by mudcatters. For example, "His songs in the 70's were terrible."
Putting "70's" makes as little sense as saying,"I'm taking my book's to my room."
In both cases, we're talking simple plurals, which don't require that bloody apostrophe.
Where DO people get the habit from?
And I'm a bit fed up with all those unnecessary "up"s and "up with"s, as in "head up the team", "we met up with her at 10", never mind "upcoming" instead of "forthcoming".