7 Chambers of Commerce have joined forces for this exhibition: Arlington Heights, Barrington, Buffalo Grove, Mount Prospect, Palatine, Rolling Meadows, and Wheeling/Prospect Heights. Mini-seminar on ''How to Maximize Sales with Your Exibit Booth'' by Stacia Skinner, Creative Training Solutions from 2 -3 pm. Expo from 3:30 - 6:30 pm.