What is the "cleanest" way to handle the grounds in a 3 gang box with 3 single pole switches (plastic)? Obviously you have one from the feed and 3 outgoing ones. Combine that with 3 pigtails and that makes 7. ?? I read somewhere where a guy suggested combining the 4 (1 feed and 3 outgoing) with a 10" long pigtail that goes from switch to switch. ??? Not sure if that is OK.