Use PayPal’s free disposable credit card number to manage recurring charges
UPDATE: This post was written in 2009; at some point in 2010-2011, PayPal stopped offering this service. =( One of my pet peeves is online sites that require payment with a credit card along with a “good until canceled” order to keep charging my card until I notify them to stop. As anyone who has ever dealt with some online sites can attest, the ordeal to STOP a recurring charge can be 100 times more difficult than the two clicks it took to start.