Most common question that is asked all over the world. For me I recommend keeping it simple and easy. I have a guest list helper in the Wedding planner i give to all Mr & Mrs to be! Make a Yes, a No & a maybe list of all the people you know! I would say If you have shared a meal or have laughed your lungs out to where you start wheezing then theyre definitely on your list! We share meals with people we enjoy and comfortable being around and we laugh with people who make your day abit more brighter.