If you love Sharpies (as I do), but actually manage to hold onto them until they run out, rather than losing them at the rate of several a week (as I do), then you might benefit from the refillable, stainless steel Sharpie ($5.78), which would spare you the sad sensation you get when you drop your dead Sharpie into the trash.
There's only one time in my life that I actually used up a Sharpie: when I was signing the title-pages for something like 5,000 hardcovers of this graphic novel, and I had the curious sensation of uncapping a fresh Sharpie and signing until it ran dry -- it was something like using up an entire chapstick, a weird kind of accomplishment.
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.