There is nothing sensational about this photo's subject matter to other frugal warriors. It's half of a banana and a large bite of cornbread under a glass bowl sitting on my placemat. I eventually ate the cornbread bite as a pre-dinner snack yesterday and the half-banana will be used in tomorrow's smoothie.
Our whole family does this all of the time. If we can't finish what we've started, we refrigerate perishables or leave less perishable remnants at our places at the table.
When my son was a small boy, any leftovers from meals were reincarnated into his next meal's offerings. So, a partially eaten apple might become a personal mini-microwaved apple crisp, while a couple of bites of meatloaf might be reheated and served with toast for breakfast the next morning. Even a partial glass of milk became cocoa for breakfast or a "milkshake" with lunch. My kids simply grew up with this, so it never seemed yucky or strange to them.
Both my husband and I grew up in never-waste families. Part of that was due to the times, and part was due to a lot of mouths to feed in my husband's family. (At one point, both grandmas lived with the family of 5 children.)
We try to be careful not to over-serve ourselves, but sometimes even our adult eyes are too big for our stomachs. We just try to not let those occasions become a source of waste. Anyway, I know that you all do some rendition of preventing wasted food similar to this. Every once in a while, I just like to say that part of frugality out loud. Non-frugal folks might not understand, perhaps thinking it better to throw out food remnants than to have them hanging around for a few hours or a day. But you all get it, right? It simply makes me feel better about our stewardship of our tiny sliver of the world's food supply.
