I built my layout in sections. 4 x 4 ish sizes. I have not done this on all sections but I have on some. At the break points I have the black terminal blocks one on each side of the break point, then a jumper. For other sections I used the layout wood as the terminal block, I cut the wire, screwed each end to the board and ran a jumper across the break point. Since they line up across from each other there is no real need to label the wires, and they are secure to the board.