webdoctor - 9:03 am on Jun 13, 2007 (gmt 0)

4. If you're going to ask customers to sign up for your newsletter during checkout, do it AFTER the payment is processed. Before the payment is taken, the customer is far more interested in ordering your product - but once you've taken their payment and they're looking at your "Thank you for your order" screen it's the ideal moment to get them to sign up...