(Also, for the record, in case you were serious, most potatoes tend to be sold in sacks or netted bags, so it's the individually wrapped potatoes that are the odd ones out...)
I pick each potato like no one is watching and it may be my last then gently place it in a little thin non recyclable bag where it travels to a small dark cardboard box known as the house of the rising tater
Honestly I need to start doing that. Most of the time when I buy a whole bunch of like 5 or 6 bananas, the last two end up brown and gross before I can eat them.
I'm talking about buying them separately in contrast to buying them connected(no matter how many you get). If you will peel them before they get too bad, you can chop them up short ways or put them on a stick whole then freeze, they make good ice cream substitutions.
Here's a trick: bring a small knife to the supermarket. Separate the bananas you want to buy and nip out the tips where they were joined. This will remove 3 grams of banana that you would have paid for. Every self made billionaire knows this trick.