Depending on your height, weight, diet and activity levels, you should be drinking anywhere from 70 to 100 ounces of water a day. For some reason, this is typically quoted in terms of eight ounce-glasses like the commonly-reference rule of thumb—drink eight glasses of water a day! However, if you're drinking out of an eight-ounce glass, this means you're supposed to remember to get up and refill your glass 8-11 times a day. If you're capable of doing this, kudos. But do you have a chart? Do you keep a tally? Assuming your day is also populated by work or literally any activity other than drinking water, how do you remember what glass you're on after, say, glass number four or five without losing count? This may seem like an absurdly easy/obvious fix, but when kickstarting my fitness goals this year, as one does, I bought this 32-ounce water bottle from Amazon, and it has been a game-changer. All I have to remember is to refill it three times a day and I'm properly hydrated. Easy-peasy.