title: What's the best way to store checkboxes in a PostGres database
body: <p>what would be the best way to store a student's vehicle in a database?
  They can select bike, scooter or car.</p>
  
  <p>Some say the best way is to store a hash in the database (what would the attribute type be?) other say the best way is to create a Has many :through association. </p>
  
  <p>Thanks!</p>