This is interesting, I have also always mixed up loose and lose. I agree with Phred though - lose does look wrong. However, you're right RedHedd, I just looked it up and found several sentences using these two words.

Loose, as in let loose, break loose, loose ends, loosen up etc.

Lose, as in lose the train, lose patience, lose one's way, be a good loser etc.

Hmm, I'll probably have to look this up now and again.

Well, concerning the bad written posts (grammer and spelling), we can at least sometimes see from title whether we will bother to open it, as the title often has mistakes too.