This user prefers that the subjunctive mood be used. Were this user you, he would use it.
its & it's
This user understands the difference between its and it's. So should you.
to/too/ two
Too many people have no idea how to use words they should have learned in grade two.
their there they're
This user thinks that there are too many people who don’t know that they're worse than their own children at spelling!
your you're
This user thinks that if your grammar is incorrect, then you're in need of help.
’s
Thi’s user know’s that not every word that end’s with s need’s an apostrophe and will remove misused apostrophe’s from Wikipedia with extreme prejudice.
whom
This user insists upon using whom wherever it is called for, and fixes the errors of whomever they see.