I wanted to add one thing...maybe two or three...ya never know where I will go.

When you are writing in first person, you have to try to create a personality and stick to it. At the same time you don't want to get too far away from the basic rules of structure. On the other hand, if you write first person and completely ditch the rules of writing and grammar, it can explode out of the pages and into your imagination. It is a good idea to decide if your character can explode or not. If the character can't explode you should probably adhere to the rules and maybe add a quirk or two. In that manner you won't tweak your reader's understanding of grammar but you will give your character an identity.

Of course, not everyone will share this opinion. Those people are wrong, however. Nyah!

Have fun!
Dean