Activity for Brandi

I desperately need help finding jewelry to match my wedding gown. It's this Alfred Angelo gown, but in Ivory (I'm attempting to attach the picture, but here is the link too):...

I don't understand the guest list...do I enter a different household for each invite that's getting sent out? Also, I'm addressing invites with children "John and Jane Doe & family"...how do the guests RSVP for the # of children attending?

Etsy is a FABULOUS website, and I have spent a ton of money on there and will continue to spend a ton of money buying crafted goods leading up to and following my wedding. Sometimes, however, I see something and can't help but think, "I could totally...