Have any of you bought something you saw on one of the banner ads? I am a pencil geek--I do everything in pencil at work, so when I saw the banner ad for the Sharpie Liquid Graphite pencil I had to have one. I don't think I like it. It writes like a bad gel pen--it skips. It looks kinda like a pencil, and it erases perfectly--not like those erasable pens. But then on the back it says that it becomes permanent after 24 hours. So, what is the point?????? I write in pencil so I can erase. I guess being a Sharpie, I should've known that? But is is supposed to be a pencil. Oh well. I just thought I'd share so it you were thinking of buying one, you will think twice--although it is cheap, I'd rather have my regular mechanical pencil.