One liter is 33 fluid ounces, so you have to drink about 2 liters a day!! And, yes, I'm having trouble too!!

I have a couple of liter bottles that I alternate in the fridge to keep it cool and I sip away all day. But man, it is a LOT!

What I used to do, years ago, was make sure I drank 1 8-oz glass first thing in the morning (before coffee), with each meal, mid-afternoon and mid-evening - that's 6, so you don't have to sip too much to make up the other 2. I think I'll try that again.