I trim the quilt while squaring it up before I add the binding. I guess I'm the only one that uses a 3" binding. I take about a 3/8" seam. I like that my binding is a tiny bit bigger. I learned this tip for one of the published quilters and have been doing it this way ever since. Wall hangings I use a 2 1/2" binding. I've heard of the glue method even bought the tips at Michaels, but have never used them. I don't have a problem with bindings. Sometimes I finish it by hand and sometimes by machine.