The $10 Groupon Explained - 50% off of Shared Ride

This Groupon for Airport Shuttle of Phoenix works just like a $10 gift certificate. You pay $5.50 and get about 50% off usable towards a shared ride.

For example, your trip is $35 and you purchased the $10 Groupon. You pay $25 on your card and the Groupon pays the remaining $10. Your net savings is about $5 for using the Groupon.

You can also use other discounts for round trips, veterans, AAA, etc. If you booked a round trip, you can purchase two Groupons. One for each one way trip. Groupons are applied to each trip, not individual...