I vote for muffs also. However, there are muffs and then there are things that look like muffs. Get the highest db rating you can find, whatever you pay, it's cheaper than hearing aids.

The same goes for electronic hearing protection. My Wolf Ears died last year and I started a search for a reasonable replacement. The things you have to be aware of is that industrial hearing protection drives the supply side at our end and the instructions are going to suck. Blue Tooth/MP3/whatever interface is more important than protection from impulse noise in many/most cases. After a number of false starts I ended up with the Peltor Tactical Pro. One button on/off and it holds your volume settings when off. I'm not thrilled with the foam bags over the mikes, but the part number is in the instructions and they're cheap.

Now if you can afford the stuff made for the Spec Ops crowd, please remain silent and don't brag.