Noise pollution is a form of torture. I don't understand why our society doesn't fight it more. I've tried earplugs but they are very uncomfortable to sleep with, and usually give me dizziness the next day.
FYI, you can also add those features (lazy mouse, curved lines, isometric and perspective constraints) to any art app (including Photoshop) with the Lazy Nezumi Pro app.
http://lazynezumi.com