I got so tired of lugging in cases of bottled water to work, so after I read this thread I went out and bought a 40 oz. Thermos (the heavy metal kind) to lug into work every day. It's sitting on my desk as I type this - I'm thinking it'll be both a good reminder to drink all day long as well as a way to avoid buying bottled water all the time (I keep 2 large containers of water in the fridge at home all the time, so I just filled up the Thermos with that cold water before I left for work).

When I was lugging bottled water in to work, the problem was "out of sight, out of mind" - it was in my little office mini-fridge. So hopefully this desktop, big gray Thermos reminder will keep me chugging all day long.