Dumpster iving is the practice of sifting through commercial or residential trash to find items that have been discarded by their owners, but which may be useful to the Dumpster diver. The practice of Dumpster diving is also known variously as urban foraging, binning, alley surfing, Curbing, D-mart, Dumpstering, garbaging, garbage picking, garbage gleaning, skip-raiding, skip diving, skipping, skip-weaseling, tatting, skally-wagging or trashing.