52 Weeks to Make the World a Better Place: Week 42 - Install long-life light-bulbs

OK, they cost somewhat more than the average budget (or even full-priced) light-bulb, but think for a moment: everyone these days is keen to 'invest', no doubt to prove what worthwhile citizens they are. A long-life light-bulb is just a small investment, but with added hidden benefits. Consideration of cost versus lifetime suggests that there's not much in it. But the energy use is around one-fifth of that of a normal light-bulb, plus it saves on the materials and manufacture of roughly a further nine such objects. Now that's got to be a bargain!