While it is true that things run smoother in the absence of crisis, you need to consider history (read "The 500 Days" or "Resistance [Gutman] for example) to see that civilization has, in fact, survived in the absence of electricity or other "comforts," in the presence of starvation and plague, and even under a rain of shells and bombs. Some? Sure. "Everyone" is belied by actual human experience.
Good lists above.
Needles and thread?
Nails?
Wire?
Hand tools?
Files?
Spices in general - sage, savory, garlic, mustard, pepper, RED PEPPER!!!!!
Honey
Could you have too much salt?
Hand-loading supplies in general.