Your own pitcher of water helps you keep track

Weekly Health Tip:

Fill a 2 Liter pitcher full of water in the morning. Set it aside where no one else will drink it, and try to finish it by the end of the day.

I drink a lot of water, so this one should be quite easy for me. I have a large glass I keep in a special spot in a cupboard and fill it often. I've heard if we are thirsty, we are already dehydrated. Can this be?

What water tips do you have?