Hi Jane, thanks for this post and keep up the good seed saving.
I save broad beans, peas, some tomato, lettuce and a few oriental leaves. I do like some F1 hybrids!
What other vegetables have you saved successfully? Are you using a big area for it? – for example some say that you need a few plants of each to ensure genetic variation, say twelve beetroot.
Are you managing to save squash even with different varieties?
(makes a change for me to ask questions here!)