Plugs and muffs here too, except when shooting .22 rifle. Then it's plugs only. I like the extra protection because I have some tinnitus, not so much from shooting as from playing in loud rock 'n' roll bands when I was younger. (And BTW, don't blame the guitar player -- some of the most damaging sound comes from the drummer's cymbals.) Also, the plugs can protect you from an "oopsie" -- more than once I've had my muffs off when the range was supposedly cold, only to have some &%*# right next to me let off some shots with something loud and nasty.
I usually use electronic muffs. You get the extra protection and can still hear range commands, conversation, etc. Sometimes I will wear passive muffs -- I have a very slimline pair that are useful for shooting long guns. They're slimmer than any electronic muffs.