"Have a nice day."  I hear those words quite often.  When I buy a coffee and a muffin from Dunkin Donuts, the cashier (barista) says, "Have a nice day."  When I go through the security checkpoint at work, the guard says, "Have a nice day."  When I go out to lunch, the cashier (and/or sandwich maker) says, "Have a nice day."  When I buy a few little things at ShopRite or Walmart, the checkout person says, "Have a nice day."  When I fill up my gas tank at the beautiful new QuickChek in Hopatcong, the filler-upper says, "Have a nice day."  In my daily life, that's most likely the phrase I hear most often.