We have discussed bindings on here many times. I came across this video today. They talk about what a good binding is, what judges look for, why we should or should not use certain prints, problems associated with bindings, he covers just about everything you can imagine and THEN he said, you need to end sewing each side of the binding with a SCANT 1/4"...because you also have to allow for the folds just like in piecing... how simple, but how true!!! He sews them on using a 3/8" seam allowance, and also shows how to easily measure where to STOP sewing on each side... another light bulb went off...soooo simple but very effective.
This video is really worth watching, the explanations are very easy to follow, and he actually sits and sews on a binding, explaining everything in great detail as he goes along.
http://www.quilterstv.com/channel/video/134