ProbeBuddy 2/4 is a 2 PCB Set which allows you to connect up to 6 probes to your breadboard with ease. They tap off the GND rail and give you a GND probe for your instrument. This is a space, wire and time saver. Since you will always have the pins mounted securely to your breadboard you wont have to worry about wires being pulled. The probe pads are Digikey: A106145CT-ND at about $0.25 each they are expensive but they do a perfect job at letting a probe clip on.