Let me mentally go shopping through my local Costco....without repeating stuff folks have already mentioned, keeping in mind you're just moving in:
Big screen TV (ha ha...that's the first thing I see when I walk in)
Big Xerox ream of paper (setting up office) pens
Flashlights for every room (I live in earthquake country)
Bagels or Bread (freeze part of it...have some ready for quick meals)
Easy meat stuff like boneless chicken breasts,(veggie) burger that can freeze.
Peanut butter and jelly OR big tub of hummus (depending on your taste)
Baby carrots (they last a long time, go good with hummus or you can cook 'em)
Case of water (again I live in earthquake country)
Frozen orange juice (assuming you have freezer space)
Chips (go good with hummus)
Big box of cereal that you like (quick dinner or snack)
Case of cup o'noodle or case of soup you like
case of tuna
Some sort of headache or cold or cough medication (if I'm that sick, I don't want to go out and get it.... think back at your health history last year & buy accordingly)
(well, I did repeat some stuff, but maybe that's just good to have agreement, eh?)