We've already got that:
Link to more information. I've used the stuff. It's amazing. There are already confirmed instances of this stuff being used by the USMC in the field.
One Marine was saved after his jugular was severed by a bullet. It's also proven to work on arterial bleeds.
Cost: About 10 bucks.
I highly recommend you add it to your family first aid kit. You do have a family first aid kit, right?
L
From the PDF at Z-Medica's FAQ.
I'd gotten a severe cut on my leg as a kid, and my Dad grabbed a small pane of glass and pressed it onto the cut, holding it there for about ten minutes or so; it stopped the bleeding better than a bandage would, and healed without any now-noticeable scar.
Looks like that QuikClot® should be in everyone's First Aid Kit; it will be added to mine; thanks.