Keeping busy in retirement is important to our general well being and sanity.

This month David Cameron, Britain's prime minister, asked the Office of National Statistics to measure the country's "general well-being", as part of his promise to focus on GWB not just GDP.

Is it really too hard to move the bed, unplug a power strip and buy a new lamp if it means reducing our chances of illness while likely improving sleep, productivity and general well-being?