So you arrive at work, start the ole’ computer and go for your morning coffee with your favourite “don’t talk to me until I drink this” mug. Does it look a little gross? Is there still bits leftover from yesterday’s coffee? According to a recent column in The Wall Street Journal, it’s OK to never wash your mug. As long as you aren’t sharing with anyone (ew), it’s actually preferable to keep your mug unwashed, since the alternative probably involves scrubbing it with a communal sponge that’s full of …. who knows what.