OneArmed said:The easiest way (coming from someone who runs an internet payment company) is to just have a checkbox on the checkout form asking the consumer if they want to receive the catalog or not.
It doesn't take much dev time, and you can easily categorize those that do and don't in tables for sending or withholding from the printer/marketing firm. Same goes with email marketing, and it avoids pissing off legitimate customers.
TAP TAP TAP! Thanks for your post.