If you haven't done so yet, please check out the "latest resources" section just below the "new posts/latest posts." You will find past posts from members about shopping before surgery, their surgery experiences, and other helpful advice.
I had bought sugar-free already made jello, s.f. popsicles, beef & chicken broth, some protein shakes, Benefiber to avoid constipation, and Tylenol to help me with pain as I slowed down, then stopped taking pain meds after the third day.
Good luck and may you heal quickly and painlessly.