For schools: 100 cards for $20, or get 500 cards for $50 - post-cards & map-cards

You can order cards (retail price = $1 each) for 20 cents per card If you order 100 of any one variety.

Or get 50% off and order 500 cards for $50.

To order 500 or more, "mix and match" your cards 
and simply use the coupon code of "halfoff" when you check out.