You most likely have had the pleasure of going into a coffee shop looking forward to a moment of solitary bliss, and a mom and her three kids sit next to you, the littlest one hanging out at your table and the mom thinking it’s adorable. Then the guy behind you gets on his phone and thinks everyone in the place wants to hear his conversation with his boss on the latest sales numbers. The volume on my Pandora hits maximum. That’s what you want to do to the annoying noise within the coffee shop of your head. You don’t need to hear a screaming kid who is apparently adorable when he screams or a salesman announcing his last numbers. You want peace and quiet, if only for that half-hour. So get yourself some imaginary headphones and turn up the volume.