Easy long-term food storage for a variety of staples: rice, beans, grains. Buy in bulk, store in clean empty bottles and use what you need as you need it! They are water and air tight and keep bugs out! 1 and 2 liter sizes are great for trading too!
Good suggestions, but Doxycycline , Azithromycin and Erythromycin are all VERY similar. In a class called macrolides, I'd pick just one ( Doxy or Azithro). But I would add Augmentin to my stockpile, it has better coverage for animal bites