It's not that unusual to save flower seed to set the next year - things like sweet peas or marigolds which grow easily.
Nor to save beans and peas
but this year, I'm taking things a little further
late last summer I gathered up seed from a whole host of veg and now it's set and growing
a 'winter mix' of salad leaves
Hopefully there'll be lots of doubly free veg in a few months time - and more seed to gather for next year