I needed to make a shelf for my workspace in the garage, and all that I had was 1/2" plywood - not quite what I needed. So, I cut 2 pieces and glued them together with Titebond III glue - love that stuff ;-)
This is the "before" shot. Here was the result after I removed the clamps. Geez, I didn't realize that it looked so cruddy until I posted the photo. The "V" is for a reference point so that we can compare before and after results. Obviously edge sanding is almost impossible without the fence (aka: Edge Sanding Guide) that I made, and use it I did :-)