when i solder i will wrap my phone wire(i got a roll of phone wire laying around that i use for projects, handles current nicely and small enough to fit through the holes) around the board for security, then wrap the wire tip around the 2mm of pin sticking out once so it is a u shape, squeeze it tight with needle nose, if possible fold the leg over the u-turn in the wire, solder it down , then trim the wire to the length of the bus + 1, fold the other end of wire around the other leg same way and solder that down, first i solder my busses node by node, then ground, then power . Then mark pin1 on each bus. Its not much less on wire, but a bit cleaner and easier to change out and debug peripherals without biasing errors.
A board for a project like above would take about half a day for me and note not everything goes on the main board such as those grey wires feeding relay or anything not practical