I am trying to figure out whether to put Dr. on the cards but leave all other titles like Mr. Mrs. Ms. etc. off the others? Or can I just use names without titles? I kind of want it to be a little informal anyway (e.g., if they go by Bob, then it's Bob, not Robert). But if I put Dr. on the ones that are Drs, then should I put PE at the end of the ones who are P.E.'s? It seems kind of silly, but I have no idea what the protocol is for that? Are the Dr's going to get offended if I don't put titles on any of them? If I put Dr. on them do I have to maintain consistency and put Mr., Mrs., Ms., etc.? Confused! Please help!!! Thanks!