A few weeks back I bought a Century Wavemaster punch bag. It just sat in the corner because I was too lazy to get to Home Depot and buy a hose to fill the base with water. Last night I finally summoned up the courage to face the Depot and came away with a hose (which I had to duct tape to my kitchen sink because they sold me the wrong fitting) and filled it. I had so much fun punching the crap out of it. Ten minutes of substained violence makes me feel much less stressed. I'd recommend a Wavemaster for anyone who doesn't like the idea of hanging a punch bag from the ceiling.