I got into the habit of correct spelling and punctuation and grammar when I was in high school. My blasted english teacher (also taught me in 8th grade) was so anal retentive about it. However, I'm a young young'un. Only 22. Nowadays, it bugs me to no end to see ppl talk lyk this. I do shorten "because" to "cuz" just because because is such an annoying word.
Ha!