Energy management is another issue that comes into this debate. In many offices and workplaces photocopiers are left on all day. If this was prevented and, for example, different lighting was used, we could have a better outcome in terms of energy management. I hope I do not sound like a killjoy, but these are important issues. One is told often by managers that lighting and heating are left on in offices all day. This should not be allowed to happen. This is also part of the whole issue of waste and energy management.