Many people have stopped pin basting and started using washable school glue. It's easy to apply and it washes out when you're done. I let it dry overnight and when I wake up, it's ready to quilt. There are several threads about it on here. I've never gone in (as some folks have) for mixing it with water and painting it on or spraying it on. I just hold the bottle up over the batting, squeeze, and make curly-cues.
Tate