Jumper wires are very handy and they can make your life a lot easier. Now with the 40 CM jumper wires, you can also connect sensors or modules to your board from almost half a meter!
They come in a 'strip' of 40 (4 pieces of each of ten colours). They have 0.1"(100 mils) sockets on either end and fit cleanly next to each other on a standard-pitch 0.1" (2.54mm) header. You can always pull the ribbon wires off to make individual jumpers, or keep them together to make neatly organized wire harnesses.