Antimicrobials of a simple kind can be gotten in the verterinary section of your local TSC. They are effective and pure. I bought sulfa powder and gentian violet. I also have a colloidal silver generator, which makes a super-effective anti-microbial that can be taken internally as well as used topically for wounds, plus depending on how it is made, can be used to disinfect surfaces. Distilled water+pure (.999 at least) silver. (This means you need a source of electricity, whether it is from batteries or generated from a wall source.
Candy and other comfort foods/rewards. Games, playing cards, books for boring times. Hard candies can be dissolved and used for sugar if necessary. Honey can be purchased in powder form.
Vinegar with the "mother," (Bragg is best) so you can make your own. Make sure to save the brown stuff in the bottom of the bottle, and all you add later is cider. Acidophilus caps to make your own yogurt from powdered milk.
If you are adding whole grains to your lists, be sure to get a strong, simple grain mill for grinding that grain into flour.
i am preparing a two week menu which only uses the foods i prepped. this way i can discetn exactly what i need for a year. i.e two weeks x 26. i know am no longer all over the map on what to store. i know exactly what i need. after six months of prepping i now have a plan.