Our trip is not until January and to be honest, I don't know exactly when or where we will be renting BUT, we will need a minivan so I really need to get the best price possible. A lot of the codes I see expire by June. Do I book now and add a code later or does anyone know when I would be able to book with the code? After trying to figure out transportation, booking ADRs and scheduling for 7 people will be a breeze .