CONTINENTAL CURRENCY, COUPONS REDEEMABLE IN-FLIGHT FOR BEER, WINE, COCKTAILS AND AUDIO HEADSETS, IS ABOUT TO BECOME THE PREFERRED METHOD OF PAYMENT ABOARD CONTINENTAL AIRLINES FLIGHTS. Available at the airline’s eService Center kiosks, the currency can be purchased before departure using a credit card and is valid for up to one year from date of purchase. Kiosks dispense coupons in bundles of one, two, three or six, each worth $5. The three-coupon and six-coupon purchases are discounted at $13 and $25 respectively.