I always have a LARGE amount of extra seeds from from what I have planted for my personal use as well as I have 3 other people that I do a 'seed swap' with when we have a lot of extra of one thing and need seeds of something else, so start up costs of buying seeds is not really an issue. I would only have to buy the seeds of maybe a few things that none of us have... like wheat and oats.
right now I have 'extra' seeds of beans, beets, broccoli, cabbage, carrots, cauliflower, celery, corn, cucumber, eggplant, onions, peas, peppers, pumpkin, radish, spinach, squash (both summer and winter types) tomato, and Zucchini.... I think I have the veggies covered . I also have blackberries, blueberries, raspberries, and strawberry plants they love the leftovers in my berry patch come fall!
Thanks everyone for the ideas!
And thanks for the warm welcome to BYC