The Paper Mate Tandem ($5) combines a ballpoint pen and highlighter to make sure you'll never have to dig around looking for one or the other when you need it. The super handy two-in-one writing instrument features a twist grib, Lubriglide ink system, and smear resistant highlighter ink. In addition, the highlighter unit can be replaced with a refill after you've used it to mark all of the dirty words in the Dictionary at the library.
Uni-ball's Signo Pen Set ($25/set of 8) has the world's thinnest ball point tip — a diameter of 0.18 mm, or about the width of two human hairs. While currently only available in Japan, the Signo can be purchased online like most lustful objects. This set comes with 8 colors — orange, light blue, violet, pink, red, black, emerald, and blue. [via Wired]