Arnold
The reward for your sharing good advice to hobbyists for years is ... receiving good information from hobbyists when you need help. You got plenty of help!
I had already applied many of the tips to my L-shaped layout:
* MTH terminal blocks for track power via bus wiring and feeders - from a Lionel 135w brick or a MTH Z1000 (the 18v output),
selected by a knife switch
* Barrier Terminal Strips with 14v to action accessories and switches - from a separate MTH Z100 (the 14v output)
* Color coding
* Plastic cable clips for support of under-the-platform wiring (no holes through lumber), avoids the "spaghetti effect"
* Spade lugs for wire connections to terminal strips and ring lugs at connections to #90 control buttons for accessories
* Lighted lockons to confirm power is ON at main lines and insulated sidings (activated by a toggle switch).
Good advice is priceless. Carry on, valiantly ...
Mike Mottler LCCA 12394