I found that if I set a schedule it's much easier to drink all my water. It's cold and I drink a gallon a day, at least. First thing in the morning on my way to work I drink my first 34oz. I have to drink the 1st container before I allow myself a cup of coffee. I have to have my coffee, so trust me, that water goes down. While driving to work, every red light, I take a couple of gulps. My second container is drank before lunc. If it's not gone, I have to drink it up before I get to eat. Then the 3rd is after lunch but before 3pm. The fourth is between 3 and 5pm. I stand there in my office some days finishing my last container. But I don't go home until I have drank 4 34oz waters. It took me a while to get use to it, but honestly, by the end of the day it's all gone. That way when I get home, I can drink what ever I want. Soda, tea, etc. and not have to feel guilty about not drinking enough water.
Maybe try setting a schedule for yourself. You will get the hang of it.

Deana