vacuum.
© 2007 Jamie Zawinski <jwz@jwz.org>

M:	"Hey, want this bucket with 20 gallons of vacuum tubes? I'm throwing it away."
jwz:	"You can't throw that away, those are neat! I'll take it."
	...30 minutes later...
jwz:	"What the fuck is wrong with me? I have absolutely no use for this junk."

Want some vacuum tubes? Get them from the back room at DNA before the garbage gets taken out.