How often do you wash your makeup puffs or brushes when applying foundation?

How often do you wash your makeup puffs or brushes after applying foundation?

As I get older, I cry a lot, so it is becoming increasingly difficult to apply makeup.

Also, now that it's summer, I often sweat while applying makeup, so it's even more difficult these days.

So it feels really unpleasant every time I use makeup tools that are getting contaminated with tears or sweat.

A puff used when using a cushion or applying foundation, or

It would be good to replace the brushes and other items used for eye makeup every day, but

I'm not that diligent, and realistically, it's hard.

Also, since I don't wear makeup every day...

I feel like I'm paying even less attention to it.

So sometimes, if I think it's really dirty, I clean or replace it.

I noticed that the stains don't come off easily, and even after washing, it doesn't feel as clean as it was initially.

How often should I wash my makeup tools to keep them clean and hygienic?

I'm curious how often others do their laundry.