I just use foam ear plugs, I keep them in a certain pocket that way I'm not looking for them when I need them. Sometimes I keep one in my left ear if I think I'm close to shooting. If I'm at a stand then I will put one or both in, if its windy and I can't hear anything I just put them both in.
I find I can relax better when shooting probably because I always use plugs and muffs when shooting at the range.