Pocket screws

 Kregs pocket screw jigs are one of those next level tools.  I've done a couple of pocket screws the old way - angling a drill to try and get it to approximate a toe nail, having it split out the board, go in too deep, too shallow, too... whatever.  

But with a simple jig set, perfectly sized drill bit, and screws designed for the task - wow.  Just stupid simple.  And this is another task that could be done while the panel was sitting on a table - much easier than trying to do it 'in situ'.