Brookfield has a new rule for its 4th of July parade: no saving spots along the route until 24 hours before the event. That means spectators can begin setting up starting at 10 a.m. on July 3. The city posted hundreds of signs along the entire parade route to make the rule clear to attendees. Jessica Berg, who walks the parade route, said the new policy makes sense."I feel like 24 hours seems very reasonable," Berg said. For Robert and Sally Pie…