Bouillon cubes will last 12 months. Normal cereals from the supermarket can be stored for six months. Instant breakfasts - six months. Nuts will go for nine months if you refrigerate after opening. Unopened peanut butter can be stored for nine months.
Soft drinks are good for three months.
Bottle water usually should be treated with chlorine bleach for long term storage. Ammo and primers should last almost forever if kept in a completely dry environment. If you wait it may go out of print or may be difficult or impossible to obtain when you really need it.