You can freeze bananas if you don’t want to use them now. They’ll only be good for cooking when defrosted but it takes to pressure off using them all at once!
When we lived abroad I bought my f&v at a street stall. Items were bought either by the kilo or by the ‘piece’ for individual items. I asked for two pieces of mini-cucumbers but when I got home, I found I had two kilos of cucumbers! 
Girls grammars in the 60s (and beyond)


also there’s the fact that you can’t see sizes easily, recently I ordered a pack of flour and also some hairspray, and when they arrived they were tiny !