It's easy enough to standardize the physical connectors in a project (e.g. build your whole robot with just one or two sizes of nut/bolt holding it together). But what about power and electrical connections? 
via MAKE http://makezine.com/magazine/skill-builder-make-your-own-snap-together-electrical-connectors/
via MAKE http://makezine.com/magazine/skill-builder-make-your-own-snap-together-electrical-connectors/
