I have a couple of different families I'm inviting, all have children over 18. Most are at college and don't have their own place or are living at home, so I'm trying to be the most efficient about $ and paper but also follow etiquette. I had planned on sending a separate invite for the parents, and then one invite for the kids both addressed to the same place. Would this be acceptable? Also, is there an order for listing them? Age? Name? Gender? What is the correct format for this? Thanks!! (e.g. Ms. Jane, Ms. Emily, and Mr. Kyle)