An Easy Way To Build Your Subscriber List

I recently made an online purchase from The Home Depot. In the shipping notification email I received, they included an email sign up call to action. This is a great way to ask an already engaged customer to join your email list. Placing this above the fold helps to ensure great visibility and hopefully a whole bunch of new subscribers.

Orbitz uses a nearly identical opt-in link in their confirmation email, except in their case they choose to use a text-based rather than graphic call-out box:

Going back to tried-and-true direct marketing principles, it's no secret that your most recent customers are your most important customers. When sending order confirmations, marketers should look to strike while the iron is hot by including an opt-in link, preferably at the top of the email.