Matching the fabric pattern

I didn't realize that polka dots would need to be matched! Well, if the dots are random, they don't. But when they are in ordered rows like this, they really do need to be. The first photo below shows what poor matching looks like. The second photo shows a dress where I cut each back piece separately, making sure the pattern would match. It's not a big deal, I guess, but when you know better, it's nice to do it right.

Here are the two dresses from the front. They are both size 2 and identical (except from the back!):