I have friends just like you who just don't remember to drink enough water.
Some of them have found it helpful to start the habit of carrying a refillable bottle around with them - just makes it easier to remember when there's always water nearby.
There are some great stainless steel ones that are double walled and keep the water cool and refreshing all day. Maybe that would be an idea to jog your memory? This is the one I have, it's available in a bunch of different colors, and I love it!
