I used to struggle all the time trying to get enough water. The 8 8oz glasses a day was tough for me because I would literally forget. I kept a water bottle with me but would forget to drink.

The solution I came up with was sort of drastic but it works very well. When I get up, I immediately drink about 16oz. This is before breakfast or anything else. Then I go through my normal daily routine. About 9:30-10ish guess what....nature would call. But before I go to answer the call I finish whatever is in my water bottle. Doesn't matter how much is left. I then refill it when I'm done in the mens room.

So basically whenever I had to 'go' I would make myself polish off my water bottle before going. My body didn't let me forget and after a while it got to the point where there was no water left in the bottle by the time I was ready to 'go'.

I know it's weird and drastic but it works.