I once gave up drinking milk for an entire year.
I was trying to be healthier and read a book by Mary Lu Henner, which contained on entire chapter on how bad milk is for your body.
After reading that, the thought of milk made me sick to my stomach.
So for 12 months, I drank almond milk instead.
For those of you not familiar with almond milk, it tastes like melted ice cream, and is just about as fattening.
I didn't lose weight.
Also, I tried soy cheese and decided that chewing on the plastic wrapper that normal cheese comes in would taste better.
After a year, that first glass of milk tasted like nectar of the gods.