Regardless of my resolve, my breadboards always end up a mess. And, if you've read my previous posts, you'll know I hate soldering. So I'm always looking for the secure but easier way to wire things. Here's my latest idea.
Imagine a breadboard where the pin holes on the normal top pass through to the mirror holes on the bottom (I tried with a current breadboard, but the metal row connectors get in the way).
Here's a rough sketch: