And now, for people who need a device to tell them how much water they've been drinking:
Intelligent Water Bottles :
[list=][*]Personal Hydration Calculator - automatically calculates a recommended daily Personal Hydration Goal
[*]Average Consumption - displays the average amount of fluid consumed per hour
[*]Sip Tracker - displays the percentage of fluid consumed relative to your Personal Hydration Goal
[*]Time Tracker - displays the amount of time elapsed for the day to reinforce proper pacing
[*]Drink Monitor - monitors the total amount of fluid consumed throughout the day
[*]Calculates your personal hydration needs tracks your fluid consumption through the day
[*]Paces you to ensure hydration goals are met
[*]Motivates you to stay properly hydrated[/list]