Wait until about 2 in the morning and put your ear plugs in. Crank up your CD player and let it rip. Choose from a cat in heat, violin practice, garbage truck, newborn, phone ringing, or any 1 of 15 other sounds. You only have to play it for 30 seconds at 2am, 20 seconds at 3am and 10 seconds at 4am. You won't have problems with those neighbors again.