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Save seed from mature squash (let a summer squash mature on the vine), tomatoes, cucumbers (treat like squash), pumpkins, melons,
beans, and more. Most seed saving is just common sense. Let beans dry on the vine - that's seed. Pick a ripe tomato and put it in a dish and let Mother Nature take it's course. It will ferment and smell bad, but when it's rinsed off and dried - that's seed for next year.
Look up how to save seeds for what you grow. Some seeds must be refrigerated for a few weeks to produce the dormant stage, some can go straight from the garden to storage as long as they're dry.
Why buy seed next year when you already have it for free this year?
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