Commenter Lynne sent me the link to this dress from Posh Girl Vintage, which combines two of my favorite things: buttons and polka dots.
It's pique, too, so I guess that makes it three of my favorite things. Oh, wait — piping — that's four. If only it had pockets …
It's a little small (maybe a modern 6?) but it's so adorable. (Click the image above to visit the Posh Girl listing.)