I am having a garage added to my house. I want to add two 20 amp circuits so lights and receptacles will be on different circuits. Can I just run a 12/3 wire from my main panel to the garage and use a shared neutral at the main panel? In the garage branch off with say black for lights and red for receptacles. If so do I need a double pole breaker like you wire a 240 circuit or a set of 20 amp breakers that have handles on the breakers so if one circuit trips they both do? I guess what I am asking is if just a standard double pole 20 amp breaker is ok. Red and black wire on the breaker and white, of course, to the neutral. Will this work? Thanks!