If you want something you can trade post ww3 also stockpile alcohol, tobacco, coffee, etc. . Small luxuries everyone will be willing to trade for in a post war country.
Sugar and salt are non-perishable if stored in right conditions. Later one does not get too much use. But first one can be turned to drugs and those are always popular.
If you want something you can trade post ww3 also stockpile alcohol, tobacco, coffee, etc. . Small luxuries everyone will be willing to trade for in a post war country.