A bit late to the game, but the consumer side risks of the subscription model got me a-thinking. My main credit card offers a one time temporary credit card nu

A bit late to the game, but the consumer side risks of the subscription model got me a-thinking. My main credit card offers a one time temporary credit card number for use when I want to buy something from a dodgy website. I log into the credit card company website, hit a couple of buttons, and generate a random CC number with an expiration date one month out. This works great for a one time purchase, but rather badly for a subscription purchase. I guess what I would do is, when wanting to cancel the subscription is to change my billing credit card from my "real" credit card to one time credit card number with a short expiry date. The one time card number will be dead within 1 month after such a change.