Can we give it up for the humble wire cap?

This little invention no doubt has to be the best way way to connect electricity ever.

Consider that virtually all alternatives out there involve a more complex or permanent connection; the ease and simplicity of adjusting wiring using nothing but a plastic cap you twist about 10x is pure genius.

My wife likes to swap fixtures as much as she likes to move furniture around so I would not be able to keep up with her demands if I had to solder or splice or 'crimp and heat shrink' every connection.