If your office doesn't pay for a cleaning service, and every employee is left to wash their own dishes, you'll want to maximise every cup, plate and spoon you bring to work. So when it comes to caffeine you might want to swap your current mug for this $US14 double-duty alternative that holds 160mL of coffee, or 45mL of espresso when flipped upside-down.
It's dishwasher safe too, if your company is at least willing to spring for one of those in the lunch room. And, besides coffee, it seems just as useful for making a cup of soup at lunch, followed by a smaller portion of pudding for dessert. Or a small glass of libations after work, followed by a shot of whatever keeps you going. [Cool Material]