I saw a video on You Tube that said we need to drink at least half our body weight in fluid ounces. So if you weigh 200 pounds, then you need to drink at least 100 fluid ounces every day. I would buy gallon jugs of water, but I rarely drank the whole gallon in a day. I noticed that the small bottles of water were measure in 16.9 fluid ounces. This was easy to measure.
I started to buy 24 packs of 16.9 ounce bottles of water. I made a goal to drink 10 bottles a day. I only weighed 190 pounds at that time but I knew that since I had severely dry skin then I probably needed to drink much more water than one half my body weights in fluid ounces. I probably drink an average of about eight 16.9 fluid ounce bottles of water each day.