M.M.
Hi J.,
I also don't know where you live, but there is a great little consignment shop in my area. It is called The Kid's Echo in East Freetown, MA. I noticed the other day when I was in there, that they did have a double stroller too! I believe that they are open 10-5 on both Saturday and Sunday and have tons of great stuff. Good Luck with your search.
M.