I like Bash's TCP thing. First time I saw it thought a coworker was pulling my leg. Since then I've used it in a few places like talking to a metrics daemon on

I like Bash's TCP thing. First time I saw it thought a coworker was pulling my leg. Since then I've used it in a few places like talking to a metrics daemon on localhost, or just debugging various issues. The most fun thing is to show it to others as almost everyone is surprised about it.