Back a few years ago people were sharing
seeds and mailing them to each other. its not that big a deal but it was fun. a stamp and envelpoe and a couple seeds in it would get you some great varietys. i use to do clones in zip lock bags as well. get a few roots on one and drop it in the amil it would be fine. great way to try different stuff.
i have tons of seeds i have bought over the years i usuallu only do two seeds at a time unless its a radish or root plant. takes me years it seems to use a whole packet of seeds.
when your buyng seeds make sure there self pollinating to save that hassle. i have tomatoes right now i'm not sure about and the idea of brusing the flowers every couple days sucks. i dont have a commercial plant vibrator but i was thinking of using just a good old fashion vibrator on high and hope it pollinates or chips a tooth on the VF 100 girls.