I do the same, I have allergies so easier to justify, I guess, but I have my own coffee, which I bring in my own flask so I don't have to use the manky limescale encrusted kettle. I've seen how the milk in the fridge gets used by the thieving staff from second floor who don't contribute the the milk kitty. I also just bring my chilled lunch in a little insulated lunch bag that sits under my desk because the fridge STINKS as people leave tupperwares in there for days. Also the communal catering sized 1000 bag of teabags gets left wide open to the air all day long, and the coffee jars have water from wet spoons all down the inside where the coffee has disolved and then crusted. Kim and Aggie would have a field day on the communal yellow dish sponge. I don't clean my mug at work, it comes home in my lunch bag every day. I just...CAN'T deal with the communal sponge. Bleugh.