Finding out baby's sex at birth

We are due to have baby #3 June 22nd. We found out the sex of our previous two at 20 weeks. I'm already wanting to know the sex of this baby, but at the same time considering waiting until baby is born (just because we have never done it this way). We already have one boy & one girl & have kept most of their clothes. I think we could also by a few gender neutral things & make due. Just wondering how many mommies out there have waited & how did you stand the anticipation!? ;)