Drink all your water - but not all at once.

Drinking a lot of water (4+ cups) within a short period of time (~30-60 mins) will prevent your body from using it properly. It is MUCH better to spread your water intake over the whole day. This allows your kidneys to use it properly, instead of releasing unprocessed water and dehydrating you. If you drink throughout the day while eating, you replenish both sodium and water in your kidneys to keep them functioning properly.

Source: http://www.sparkpeople.com/secrets.asp?tip=32770_drink_all_your_water_but_not_all_at_once

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