DON’T save the box that your appliances and electronics come in!
YOU will NOT use it later!
You will not pack it back up in the box when you move 100 years later.
It will not bring more value to your items if you decide to sell it later. (Unboxed, new looking items do that.)
Chances are the appliance will ware out and then you won’t need the box.
You can cut off any important info ON the box and put in a file or ziplock bag labelled what it’s for.
Keeping the boxes takes up valuable real estate for something else or for space!
I will make only ONE exception- IF you have the room, break down the box so that you can slide it somewhere to store it. WHen you breakdown the box, less space is used. BUT that’s only if you have the space. If not then this becomes a problem too. I still think you won’t use it!