Andrew W.K.: "There's never too much. Streamers, tinsel, Christmas lights, those plastic icicles, bean counters, bean bags, bean chairs, those Tiki torch lamps, balloons.
"Confetti is good. But also remember, you don't have to go buy this stuff at a store. You can usually make these kinds of decorations out of garbage and that works just as well. If you take candy wrappers [and] turn them inside out, they usually have a shiny foil on the inside. String those up.
"If you take old pieces of hamburger paper or butcher's paper or newspaper [and] tear 'em into small strips, then you've got your streamers and all that good stuff."