Lo and behold, I found my dress at my first stop, Macy's. I tried on two dresses, one I liked, and one I liked more, but it was a little off in the bra cups. I decided to size up and see how that worked... and whaddya know, it worked!
Here's the dress I found:
It is this XOXO dress, which was $79.00 on sale for 40% off, so I took it home for around $50 after tax. The necklace-thing was just hanging with it and I really wasn't sure what it was. I tied it around my waist, but that looked silly, so I tied it around my neck. I only now confirmed that I did the correct thing when I found the dress online. I'm not sure if I'll wear the necklace-thing for the wedding. I think I'd prefer a long layered gold necklace like this.
I still have to figure out what shoes I'll wear. Any suggestions?
(I was going to add another outfit to this post, but I think I'll save it for another day!)