For the sake of my sanity / lack of eye-twitching, this is a guide to some of the more common mistakes I see made on the forums. I'm probably not going to say anything if I see these errors in your writing, but if they're here more than one person has made them.
~~~
definitely:An adverb meaning surely, certainly, or with definitiveness, as in "I will definitely be calling you again."
defiantly:An adverb meaning with defiance, as in "she glared at him defiantly.
~~~
dominant:This is an adjective, a word you'd use to describe someone, as in "Mina is a dominant wolf." It can also be used as a noun, as in "she is my dominant."
dominate:This is NOT an adjective - it's a verb, as in "she can dominate me any day of the week.

"
~~~
its:The possessive for 'it', as in "its teeth were sharp."
it's:The contraction of "it is," as in "it's a wonderful life."
~~~
to:As in "to sleep, perchance to dream."
too:As in "I like ice cream too."
~~~
wonder:To think on or question, as in "I wonder what this button does."
wander:To travel or explore, as in "I wander through the woods often."
~~~
where:A question about location, as in "where are you going?"
were:A past tense of 'to be', as in "we were blue yesterday," OR a lycanthrope.
we're:The conjunction of "we are," as in "we're men - MANLY men!"
~~~
your:The possessive for 'you', as in "your cat is mean."
you're:The conjunction of "you are," as in "you're sexy."
~~~
Tenses and PersonsFirst Person Future: I will walk down the street.
First Person Present: I walk down the street.
First Person Past: I walked down the street.
Second Person Future: You will buy an apple.
Second Person Present: You buy an apple.
Second Person Past: You bought an apple.
Third Person Future: He will break my heart.
Third Person Present: He breaks my heart.
Third Person Past: He broke my heart.