essentials for posr op

I'm leaving March 4th for MGB with Dr. Pompa and am trying to get some things ahead of time. I have a protien powder I like,suger free jello, a blender,soy milkand some broth. I worry most about the first 2 weeks of liquids. Any suggestions out there as what all to have on hand that has helped you ?
I'd really appreciate the info !

I also bought Crystal Light to put in bottled water.  Sugar Free Popsicles.  That's about it.

I've definitrly got to get popcicles. It seems that.s everyone staple ! Thanks !

I started using the Special K protein water.  Super easy to have a few packets in your purse and you just add them to your water bottle and shake.  They have three flavors that I know of.  Lemonade, Strawberry Kiwi and an ice tea.  I've only had the lemonade and it was pretty good.  As good as Crystal Light and this one has protein too!  5g per serving.  It is going to be a staple of mine.  I love water, but on the liquid phase I needed some FLAVOR!