Waste not, want not

The other day, I had to throw out a kilo of potatoes. I bought a bunch of vegetables, took them home and put away some inside the fridge. Potatoes and onions were placed on the shelf as usual.Three days later, a luxuriant layer of white mossy fungus had appeared. So I threw away the potatoes, which were still inside the plastic bag. Of course, I felt guilty about wasting food. But I felt even