It's ok to write like you talk. Whether blogging or scrapbooking your story- you're writing for you. You're writing to preserve your story. Honestly, I think it means more if we write like we talk than if we follow any rules. It's a better slice of who you are.
The Lord bless you and keep you;
the Lord make his face to shine upon you and be gracious to you;
the Lord lift up his countenance upon you and give you peace.