I was at an art store today buying supplies when I came across a new framing product that I thought was just brilliant--a brand of frames that come with templates making it easy to hang art salon-style. Will this eventually put art installers (like me!) out of a job? Maybe, but it's still a great idea. You can slap up the templates, move them around, they show you where to drill, and you can hang art like a professional without all the mathematics.