CEC is once again sponsoring the Central Bucks Chamber of Commerce Excellence in Design Seminar and Tour this year. The topic this year is the “Alleys and Back Streets of Doylestown.” The seminar is from 5 to 7 pm on September 12 at Aldie Manor and includes some excellent speakers. The guided walking tour is being held on Sunday 9/15 from 1 to 4 pm.  For more information, go to http://www.centralbuckschamber.com.