I go shooting at least a couple of times a week.

That means I use ear protection at least that much.

I prefer the EAR brand of ear plugs. Here they are.

They are excellent hearing protection, rated at 31 dB of protection.

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If you are shooting something especially loud, you can add another 10 dB of protection by adding regular ear muffs over the plugs.

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The EAR plugs are listed as "throw away" to buy.

But I hate to waste good stuff and noticed that although they might get dirty, they are not ruined.

I once accidentally washed a pair that I had left in a shirt pocket and they came out of the washer as good as new.

So, I had an idea.

I bought a "delicate garment" bag that ladies use to wash delicate stuff in.

It has a mesh cloth construction with a zipper top.

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I just save the dirty ear plugs and when I have a bunch of them, I put them in the bag and close the zipper.

I then throw them in the washing machine with a regular load of laundry.

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When they are finished washing, I throw them in the dryer with the clothes to get dried.

They come out as good as new.

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Conclusion:
Maybe not a big money saver, but there is no use in throwing away good ear plugs.

And, whenever possible, always wear ear protection when shooting. Lost hearing cannot be replaced.