You don't have to wait for the Elmer's School Glue to dry. You can iron it dry, if you're in a hurry. When I started using Elmer's, I'd go over the entire quilt, pressing section by section. It dried easily enough but it's just so much easier, to leave it overnight.
When I use Elmer's for the binding, I always iron/press it dry. Only takes a few seconds, per section.