RIDDLES/BRAIN TEASERS 2

Off on a side track, here's a puzzle I've been observing casually and considering for some years.

Do some things last longer when used regularly than not?

I'm thinking appliances, locks, mind, body, ...,
maybe not sheets! 😄
My 40plus yo corded B&D drill still works flawlessly. 💪
I tried a battery drill. "Batteries bother" back then for an occasional user, and my old faithful B&D kept on going on!
I still use it ... despite long power cords.
With masonry bits I'll use it soon for another little project.

I digress but feel for many things, some do last longer when used frequently.

What do you my friends think? Any examples?
 
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