I have lots of jugs, but my seeds are totally a mess! I cleared off the dining table last spring and just shoved them all into a bin. I have lots of "elderly" seeds, but I know many are probably still viable. I'll sow thickly, and if even 5% germinate, I'll get more than I need.
I don't start until Groundhog's Day, not only because that date appeals to me but also because we often have a warm spell in January, followed by our coldest weather of the season. If I WS'd on the solstice, too many seeds would pop up and then freeze to death. I've been told that just winnows out the less hardy, but to me it just wastes seed.