SeanMartin said: "Seriously, people. grammar is not difficult. Even if you're a student, this kind of basic thing should be something you're well versed in by now. God knows there are plenty of people on the internet who've called it out, so there is no reason for it. None. Zero. Nada. Zip.
Just deal with it.
"
Sean, I taught college freshman for 15 years and have graded more student papers than you and I could count. The sad fact is that grammar is no longer taught in many schools, not even to the best students. (I'm not sure exactly why, but I do know there has been a movement among educators that sees grammar rules as autocratic decrees and a restriction on individual freedom of expression.)
I once got frustrated (I had far too many students to mark even half of the grammatical errors) and stopped a lecture to explain to/too/two, their/they're, etc. I was being sarcastic and expected the students to be outraged. Instead, they were actually grateful! Yeah, they could have looked up the rules on the internet, but who does that except you and I? (FWIW, the university where I did most of my teaching is ranked among the top 25 in the nation. My students were all above average.)
Although it could be a help, the internet actually makes things worse. I find myself making errors because I see incorrect usages so often they begin to look correct to me. I don't mind if you point out my errors, but you will do yourself a favor if you get used to a world of anarchic spelling and grammar.