There's nothing – we repeat – nothing more distracting than an ill-timed 10-second rendition of Fur Elise or Hakuna Matata. But how can you remember to turn your cell off when attending an important meeting, lecture or funeral? Walk in and out of your building 10 times tomorrow. (Yes, we're serious.) Each time, take your phone out and silence it before you take another step. Soon enough, you'll develop a very beneficial nervous habit. That way, the next time you're somewhere else (like a movie, wedding or trial), you won't be able to take another step until your mobile is quiet.