First, you get non-hybrid seeds...

Then you have to know what to do to obtain seeds from what you have grown.
Pretty elementary, really, when you think about the fact that non-hybrid seeds are the kind that will produce plants that will give you seeds to make another crop, while hybrid seeds are such that they are a one-shot deal, and if you want more produce, you will have to go buy more seeds. I understood in theory. Then I thought about produce that doesn't have easily harvested seeds. I had mentioned this to my best source (Mom), so while I was down visiting my parents this past week, she decided to give me a little lesson.
We were in the backyard, when she pointed to a plant that was topped with fluffy white plant matter. She asked me what it was. I didn't know, but I ventured a guess--Queen Anne's lace? (BEHHHHH. There was no buzzer sound, but it would have been appropriate.) Try again. Turns out it was a carrot plant gone to seed.
Apparently, in order to harvest carrot seeds, you have to leave a plant in the ground, and the following growing season, it will go to seed. In the case of carrot seeds, they start out as fluffy white flowery growth, but then you have to dry them. The end, plantable product is a black seed.
Well, that's one kind of plant down. I really have so much to learn. The thing is, if you don't know how to harvest seeds from non-hybrid plants, you might as well have hybrid ones, because the result is the same--no seeds for the next year's crops. Who would have known that in some cases you have to wait a year to get your seeds ? (Obviously not me. :) Anyway, in this matter, as in so many others, the only way you're going to stay ahead is to plan ahead. Seed storage will hopefully eventually turn into food storage, so the learning goes on...