"Well duh" videos

Today's "well duh" moment:

[video=youtube;2_JjJ0-mStY]https://www.youtube.com/watch?v=2_JjJ0-mStY[/video]

I can think of several projects I've mangled in the past because I didn't think of doing exactly this. Feckin' ingenious.

It's so simple, my brain is still trying to complicate it