[ 4:31 PM PT - update: Carla just upped the ante to 6 from 4, so Karl, you're in and there's one more left.]

The one thing every self-respecting startup founder needs is snazzy new business cards, so let me pass on to you an offer from Carla San Gaspar at Uprinting.com, an online printing company. The first four people to comment on this post will get 250 Die Cut Business Cards from Uprinting.com, free.

These are real business cards, not the cheesy kind with “printed by Acme printer” on the back. Here’s the details:

• 2 x 3.5”, 2 x 2” (square card) or 1.75 x 3.5” (slim card)
• Die cutting options available: Rounded Corners, Leaf, Rounded One-Corner, Half-Circle Side, Circle.
• Paper Type: 14pt Cardstock Gloss, Matte, or High Gloss; 13pt Cardstock Uncoated.
• Color: 4Color Front, Blank Back; 4Color Front, Black Back; 4Color Both Sides.
• Limited to US residents only  18 years old and above.