Use Hashes of Records, not Parallel Arrays

• Learn to use multilevel data structures, not:

      $age{"Jason"} = 23;
      $dad{"Jason"} = "Herbert";
  

• When you should do:

      $people{"Jason"}{AGE} = 23;
      $people{"Jason"}{DAD} = "Herbert";
  

• Or even: (note use of for here)

      for $his ($people{"Jason"}) {
          $his->{AGE} = 23;
          $his->{DAD} = "Herbert";
      }