Betty,
your world cruise will be so fantastic. That would really be a dream come true!!

On our Voyager Mediterranean cruise in October (VOF- Voyager October First - as it is known amongst us as there were about 30 of us on the same sailing) I think either a tux or a dark suit was fine. I'd guess it was about 50/50 (my husband wore a Tux because he already owned it from daughter's wedding). A dark suit will be perfect! I do not think you will need to worry about clothes....on such a long cruise, you're going to do a lot of recycling your outfits and mixing and matching. With the self-Laundromat and ship's laundry service, you should be able to get by with close to what we brought for a one week cruise with 5 nights pre and post cruise....(with the exception of outer garments since you'll be experiencing such a variety of outdoor temps).

Hopefully, you'll find time to write a brief introduction on the "Introduction" topic. It's great reading about each other's backgrounds, hobbies, pets, etc. Welcome to this board! I think you'll always feel right at home asking any questions here....whether on topic or off topic as we often roam!