When I had a MacBook, I was quickly compelled to do something about the fact that its sharp edges scraped things, most notably scraping off the surface of my fingernails.

But the obvious way to handle that problem is to put it in a case. For example: https://www.itslaut.com/products/crystal-x-case-for-macbook-...

I wasn't thrilled with a product design that required a case to protect the rest of the world from the product, but it obviously makes more sense than trying to file the MacBook yourself.

I have thought about filing/sanding my MacBook forever and getting a case to solve the problem never even occurred to me. I feel a little silly now because it does seem obvious, but also to me just filing it down sounds like less work than picking out a case.