Keith Watanabe * NET 2.0

When you eat at some fast food spots in Japan, sometimes you're expected to do some "environmentally" pro-active things.  Namely, separating the ice, burnables, tobacco remnants and plastic when tossing your trash out.  It's kinda funny that Japan does this (also it adds more fuel to my belief that the Japanese restaurant industry is one of the laziest in the world), but it's part of the system.

So if you're interested in saving yourself about a minute worth of hassle, what you can do is wait for one of the workers to start cleaning and go to toss your stuff out.  The worker will gladly do what should be their job for you.  In fact, they're very polite about it.