To provide power to the layout you need a power bus running it's entire length. You also need to connect feeder wires to the rails and connect them to the power bus. In this video I'll show how I do both. So let's get started.
Now for some part numbers.
First from All Electronics (www.allelectronics.com)
Quick Splice 22-18 7100
Quick Splice 16-14 7200
Quick Splice 12-10 7300
T-tap 22-18 951
T-tap 18-14 952
T-tap 12-10 953
Finally Mouser (www.mouser.com)
3M 18-14/22-18 517-905
3M 12-10/18-14 517-567