In the past I’ve brought a rubbermaid tub with a lid to store nonperishable food in. Things like boxes of snacks, cereal, peanut butter, bread, treats, juice boxes, etc. Also any paper products like plates and plasticware. With the lid closed, it serves as an extra flat surface. I also usually bring a couple small foldable bins to sit on the counter or dresser to hold fruit or grab n go stuff like granola bars. We usually drive so its easier to do this. I feel the need to be extra organized for my own sanity.