When we travel, we only carry food for a few days, which helps out in the storage problems. Some stuff vacuum packed in the freezer, smaller containers of condiments, and amaller containers than when at home. As we are rarely over a few hours travel from a grocer, we just purchase and carry what we will need for a few meals. pre shaped and frozen hamburgers, a few frozen dinners, prepared and frozen breakfast items. a small bag of potatoes, instead of a big bag of bakers, t-4 bakers instead of a bagfull, one or two onions, and so on.