I don't eat bananas unless they are green and pristine. After they get spots, I give them to the girls and Ben. (Such love, I know.) Or I freeze them for cooking and smoothies. I've wondered if there was a way to extend that short period a little longer. My home experiment ensued.
Exhibit A was left in the fruit bowl on the counter as normal. Exhibit B was placed in a plastic grocery bag, tied loosely, and left on the counter as well.
Bagging the bananas gives me a day or two of additional eating time.