We’ve all been there—staring at a "rat's nest" under a dash or trying to figure out why a ground is looping. For me, switching to proper ferrules and a decent crimper changed everything. No more stray strands or loose connections causing headaches six months down the road. I'm curious what everyone else is using to keep their builds reliable. The "Never Again": What’s one wiring mistake you made early on that you’ll never repeat? Let’s see some wire porn (or some "before" photos of the chaos you’re fixing).