My intellectual pursuit in homemaking recently has been trying to think like a 1930s homemaker. What did they do before tissues, paper towels, and baby wipes? (hankies, rags, and more little rags!) And those ladies did not have plastic wrap until 1953. Have you ever seen this in your grandmother's fridge?
To be ecologically correct and frugal (I love how often those two coincide), set a plate on top on top of bowls instead of plastic wrap. When I'm buying a container, I try to make sure it has a lid too, for easier storage. . . .but I still have a roll of plastic wrap in my drawer.
Bonus: vertical storage in my crowded fridge!