4. Sugar
Like salt, sugar has an indefinite shelf life if kept away from moisture and pests. It doesn’t support bacterial growth, so it won’t spoil. It might harden into clumps over time, but that’s no big deal. Break it up, and it’s good to go. Brown sugar, white sugar, and even powdered sugar can all last indefinitely with proper storage. Just use an airtight container and keep it cool and dry. Sugar can be used in baking, preserving fruits, or even making homemade scrubs and face masks. So even if you’re not using it every day, it’s worth keeping on your shelf for years to come.