When you sit and stare at a computer all day, you get to appreciate having visual stimulation at your workspace, be it cleanliness and organization, or cute desk accessories that personalize your space. I can't get enough of brightly-colored mouse pads, pen cups, and laptop covers, so I immediately adored this Posy Cozy. Etsy seller Darlenestuff has a whole series, each only $15, so you can pick out a color that goes with your space.
Of course, I also worry that a knitted desk accessory says Angela from The Office, rather than "take me seriously," so perhaps this is something better suited for your home computer? What do you think?