No Stupid Questions

Apples stay nice in the refrigerator, figs do, berries, grapes, citrus.

But I think what you need more is a checklist? So that it doesn't matter if your fruit this week is in the fridge or on the counter.

Apples.

Mandarins or clementines last for ages in the fridge, don’t bruise, and taste amazing when cold.

Left field answer: Any dried or dessicated fruit, e.g. sultanas, raisins, currants, cranberries, candied peel, etc.

... I did not intend those to be in reverse alphabetical order, but that's how they came out.

Wasteful consumer answer: Tinned (in juice) or those fruit cup things.

Apples, plums, clementines

All of them.

I might be weird, but in my opinion, there is not a single fruit that does not last longer or taste better when it is stored in the fridge.

Also keeps away those pesky fruit flies.

I like melon in my fridge, you cut a portion out, put cling film over the "wound" and it stays good to eat quite nicely.

Grapes could also be an option IMO.

Bananas turn greyish which looks weird but still tastes fine.

But apples from the store have probably been in a fridge for a long time already before coming into the store, because most apples are harvested in autumn and then stored in a fridge, so that works.

Berries will last 3x longer in the fridge than on the counter. Longer if you give them a citric acid or diluted vinegar bath after you bring them home.

Any particular reason it has to be in the fridge?

The thing is, it is actually not recommended to store tropical fruit in the fridge. So mangos, bananas, kiwis... The other thing is that most fruit doesn't need to be refrigerated and will still stay fresh at room temperature (assuming room temp is between 20-25°C).

You can buy a bunch of green-yellow bananas and they will ripen throughout the week without going bad and leave them outside. Apples will last a long time outside of the fridge too - even in warmer/moister climates. So do citric fruit. Berries and grapes are probably the only thing I would refrigerate, as well as cut fruit. (Tbh I wouldn't refrigerate berries either because that makes them lose their taste, so I'd just eat them right away. They are a fleeting breeze of summer that should be enjoyed within the blink of an eye.)

Why do you need to limit yourself to one type of fruit? Idk your fruit portions, we eat so much fruit at home that I am shocked we haven't died of fructose induced liver cirrhosis yet. So get some greener bananas (store outside) for Tuesday and Wednesday, grapes in the fridge for Thursday and Friday, and bring something fresh like a mango for Monday? And just have a sack of apples as an emergency. They, like, really don't go bad. If you buy fruit that is not fully ripe yet, then as well, leave it outside, next to the apples ideally, and they will ripen by the middle/end of the week.

Also, veggies?

There are quite some fruits you better leave in the fridge until they go bad and you can bin them...

Avocados

If you want a variety of fruits included fridge unfriendly ones:

Could you keep a bunch of fruit at work instead of bringing one each day?

Or keep a picture of fruit in the fridge with your lunch and trade it for the fruit when you pack your bag so you don't forget it?

Mango, assert dominance over your colleagues. /j

Most fruits, you want to keep at room temperature, in a dry and clean place. Some like it dark.

Nuts are OK in the cold, dried fruits too.