One thing I wish I had on my wedding day was a little white dress to change into after the main festivities. It probably would have put my mind at ease from stressing about spilling on my gorgeous wedding dress. Actually, I was more worried about others spilling on me, so I was trying to steer clear of those that looked like they didn't have the soberest grip on their wine glasses. Here are some wonderful affordable options I found at ModCloth.
"Gloden Rule Mini Dress" modcloth.com