The SFCC is joining with the Mount Vernon Lee and Greater Springfield chambers for the Big Bash Business Associates Social Hour. The Big Bash will take place from 5-7 p.m. on Thursday, Oct. 17, at the Embassy Suites by Hilton in Springfield. There will be complimentary appetizers, door prizes and a cash bar. The event is free, but SFCC members must register to attend. For more information, email info@southfairfaxchamber.org.