I love dehydrating. Powdered veggies are a great way to get hated veggies into your diet without the taste or texture or whatever the issue is.
The only thing I have used my dehydrator for is making beef jerky. I'll have to look into dehydrating veggies as well.
That sounds good.fruit vinegars make the best salad dressings!
Bake your own bread. My husband and the boys go through about a loaf a week, sometimes more. It is so much cheaper to make it myself.
I still have a working bread making machine that I bought ~25 years ago, maybe longer. It made great bread. But we stopped using it because the bread was so good tasting that we ate too much! I remember eating fresh, hot bread from the bread machine with nothing more than a pat of butter on it. It was better than a piece of cake to me!

I bought a nice Dutch Oven to bake no knead breads. The breads came out great and I thought the hard crusts were like magic. Unfortunately, Dear Wife and I are at that age where it's harder to eat those thick crusts that I loved. So, I have not made that hard crust no knead Dutch Oven bread either for many years.
Thank you for all the great food use suggestions.