This brings back memories of when I used to play with electronics, back in the old days before computers were all the rage.
I used to build electronic circuits on breadboards, using wires to connect the different components I plugged in. After awhile, however, I moved up to printed circuit boards.
Printed circuit boards are awesome. You basically draw the schematic diagram onto the printed circuit board, which is coated with a gold-like film, then dunk it in a liquid for awhile, causing the film to sputter or etch away, until all that you are left with is an etched circuit – no wires, no mess.
Of course, the vast majority of circuit boards are designed in this way, making them sturdier. In addition it becomes easier to compress a larger area of circuitry in a smaller space since the etchings can be pencil thin.