So I've posted a thread like this before, but I just got my latest shipment of Moo Mini Cards and I am soo in love. They're so cute! Oh, and if you're a new Moo customer, you can use this link to get 10% off your first order (doesn't have to be Mini Cards, but I totally recommend them). Plus, I totally get referral points, so everybody wins!
Seriously though, if you haven't yet, def check out Moo for your business cards. The quality is great, and you can import your images from all over the web, including Etsy, which is a huge time saver...and it really lets you create a nice cohesive look when your shop items are your business cards.