I've had a terrible problem, lately. It's the accidental swapping of "your" and "you're." It's become very frustrating to me.
Your probably not seeing it as often as I do, but believe me, it's a big point of frustration for me. Spellcheck doesn't catch it, unless your using a grammar checker, too.
When I actually write, I catch most of them. I hope. But, it's been pretty common to find the mistake when you take a look at you're email or instant messages. That's where this problem really rears it's ugly head.
So, please... Please. If you see me use the wrong "yore," point it out. Please help me.
Next time we'll discuss my subtle placement choices for my commas.