I'm determined this year I will save more seeds. These are just a few of the ones I have ready to go in the refrigerator. That's right - put the seeds in ziploc bags and put in the fridge where the temperature is cool and relatively constant (unless the power goes out for a long time) and they'll be good for a year or two. I've always left mine out somewhere with no temperature control - it could be freezing or hot as blazes but this year, I'm doing it right! Don't forget to label - the seeds all look the same next year.
I should have enough zinnas, sunflowers, marigolds, and other assorted plants to furnish the county with seeds.