Save the voicemail from your mom telling you to call her back. You’ll understand why someday.

The most ordinary recordings turn out to be the valuable ones. A message containing nothing but a request to call back holds the actual sound of somebody, their pacing, the particular way they trail off, which is the part photographs cannot store. At the time it registers as nothing at all.

Keep a couple of them somewhere that is not only your phone, since phones get replaced and accounts get lost. It takes ten minutes to save them properly. You are keeping the dullest possible recording and it will be the one you want.