A SendOutCards campaign can save you a lot of time. A campaign is simply a single card or a sequence of multiple cards that you create before hand and can assign to a contact in your database.
I use the campaigns a lot because they are a huge timesaver. Even after you assign a client to a campaign card you can still edit it with a special message if you want.
Here are the steps to create a campaign:
http://OnlineCardBiz.com