Earplugs:

I usually take earplugs to weddings. The foam type that reduces sound by about 20 decibels lets me really enjoy the band and the dancing, without pain. When I’m dressing for a wedding I ask myself this question: Should I bring a pair of earplugs, or should I bring a dozen pairs and sell them?
I once attended a wedding in a building that was basically one big room, a kitchen and no lobby. It was cold and raining outside. There was nowhere to go to escape the loud band.