I grow tired of people constantly misspelling words, such as:
lose (loose)
desktop (dest top)?
laptop (lab top)
their (there)
And that's just naming a very few. I know I'm also capable of misspelling words, but some of the words I see misspelled aren't even a correct spelling of some word that would cause the mistake to be overlooked by spell check. If you're not using a browser that has spell check built in, here's a link to the download page of the most common one: Mozilla Firefox
EDIT: Too many people are calling the iPod Touch an iTouch. Hopefully when Apple releases a tablet called the iTouch, people will see the error of their ways.