Sort your counters. Don't be reckless with other people's counters, don't put up with people who are reckless with yours. Don't loan anyone your dice tower. Keep your old Generals, throw away your old Magic Cards. Feel the force flowing through you.
Truth is that no one knows.
Just wing it. Double check the Order of Battle. After setup and before play, count the units on the map. Buy Tweezers, or get really thin fingers. Drink, belch, fart, anything to distract your opponent.