UPDATE: We've found a coupon for $15 off at the gate at California's Great America Theme Park, valid through October 2011. Check it out. Highlights at Great America are Planet Snoopy for small children, SURVIVOR The Ride, and The Australian-themed Boomerang Bay Beach Club. Park details at cagreatamerica.com. DEAL 1: Coupon for $15 off  at … [Read more...]