I rewired by 12 by 11 layout in 2022. It had been expanded twice and I need to do several things. First, I wanted to move the switch controls from a central panel to be closer to where the switches were on the layout, for some switched I wanted to have the ability to control a switch in two locations. Second, I wanted a more efficient way to hook wires up as well as an easy way to add a new light (like in a structure or a street light). Third I needed to label everything.
These lever wire connectors were recommended by others on the Forum. I just used a glue gun to connect them in place, the ones below look to have a bracket and screws. There are several different types of the lever connectors.
Amazon has cable clamps that are good to attach wires.
Below are four snap relays that I have hooked up to four different sets of switches, the snap relay is used to control signal lights. The Atlas 200 snap relay has "HO" on the box, but you can use it with Atlas O Gauge switches.
Some of my wires are held in place by staples. I stopped that approach, I tended to miss the wire or staple through the insulation more often than not.
