When I saw this deal at Groupon today: $17 for $70 worth of Custom Printing-- I immediately thought of business cards.
I've recently switched to business cards instead of a packing slip...but they are pretty expensive. This is a good deal though!
If you need business cards, or were thinking about it..check it out.
And if you'd like to do me a favor..this is my affiliate link for Groupon. I think you may have to enter Groupon and then search for this deal. It was a Seattle deal, but it was online, so it should be available. If that doesn't work, go ahead and click the link above and don't worry about it. I couldn't find a way to attach my affiliate link to that particular deal.