My pre-op diet begins September 6th and my surgery is September 20th. I love smoothies and Soups so the liquid diet is not that big of an issue for me. Plus, I eat a lot of soup in the fall months, so this is all perfect timing.
I will mainly be doing smoothies, soups, SF posicles, and the like. My doctor said I can take soups that are chunky and puree them, as long as they are low in calorie and fat and have no chunks that the body would have to break down and digest.