Seattle-based coffee shop giant Starbucks Coffee Co. is set to launch a new gift idea in time for the holiday season; in-store debit cards. The cards, which work like gift vouchers, are being touted as ideal gifts for caffeine addicts this Christmas. They can be used as an alternative to cash to pay for Starbucks' specialty coffee products, and come in amounts between C$5 and C$500, which can be topped up at any Starbucks' outlet. A magnetic strip keeps track of the declining balance.