If you can't get a buzz from the strongest brew you can muster, it's time to upgrade to a high caffeine coffee. A good candidate is Death Wish coffee, promoted as the world's strongest coffee with double the caffeine of average coffee. Not for the weak of heart (possibly literally...), this dark roast coffee is even Fair Trade and certified organic! It has a 5 star rating on Amazon with over 2,500 satisfied customers, and if you aren't happy with your purchase, you can get a full refund. There's really no risk, except that you might not sleep for days.
$19.99 Check it out