Quick question -- how do you manage the subscription/billing A combination of PayPal and luck :) I originally coded the system to support pricing tiers, so the

Quick question -- how do you manage the subscription/billing A combination of PayPal and luck :) I originally coded the system to support pricing tiers, so the legacy code supports people being billed at different rates. The only nasty bit is a hack that checks whether the user is on an annual or monthly subscription, and updates their expiry date accordingly.