I have been crazy quilting for 15 years, and never use batting and usually just tie the front to the back. My Christmas stockings have batting in them to make them "puffy"...but if you look at my site, most of my stuff is deco items, rarely would I make a whole bed quilt. It's almost a misnomer to call it Crazy Quilting, because we don't always make quilts!!!! But it's true, there is no right or wrong way, and it's also true...it's addicting!!! I also call it my therapy!!!!!!!!!!!!