If you've ever wanted to see if you have your card counting down well enough to go to the casinos try taking the free tests they have at this website (Dead link: http://www.blackjack-university.com/classroom/cardcounting/index.html)
For vets, if you want to keep your skills sharp try seeing if you can correctly keep the running count, counting 1 card at a time with a delay of .2 seconds for 3 minutes straight 5 times in a row. If you can do this with 2 cards being shown at once, I'll be very impressed. (You can get to this option by pressing 1 and then U on the keyboard)
For vets, if you want to keep your skills sharp try seeing if you can correctly keep the running count, counting 1 card at a time with a delay of .2 seconds for 3 minutes straight 5 times in a row. If you can do this with 2 cards being shown at once, I'll be very impressed. (You can get to this option by pressing 1 and then U on the keyboard)