I'm using mouse bites to mount one PC board on another PC board.
First pass on this little board, I centered the contact pads on the board edge and routed them in half.
I found those to be a bit hard to solder and desolder. So on rev B, I moved the pad centers off the board by 10 mils. That's quite a bit better.
I might try another 10 mils next time, and maybe make the drill (currently 60 mils) a little bigger, to get a shallower bite.
I've seen boards with basically just a stripe of copper on the edge.