Please note I am an Amazon affliate, so I would get some money if you purchased ear plugs using the following link. The are called DownBeats Reusable High Fidelity Hearing Protection: Ear Plugs for Concerts, Music, and Musicians (Black)
and as of 2015, cost about $15.
Here’s another video that expands upon options for protecting your ears. Some are definitely better than others. Obviously the best way to reduce damage from loud noise is to not be near loud noise. The 2nd option would be to get good quality plugs. Consider going to an ear specialist who will make custom earplugs. The other options aren’t necessarily backed by scientific evidence, so use at your own risk!