The 5% cash back applies on these purchases (only on the first $1,000 in purchases):
- Car Rentals
- Amtrak® Trains
- Greyhound® Buses
Incidentally, you still have a few days to take advantage of a Discover mall spending promotion  they have going on until December 31st. Spend $200 on your Discover card and bring the receipts to a Mall’s concierge/customer service desk for a $20 gift card.