Here in the frozen north, the days keep getting shorter, and thanks to Daylight Savings Time ending, it seems like the sun goes down shortly after lunch. For those of us who feel pretty blue when we don't get a good daily dose of sunlight, this Sun Jar might be a worthwhile purchase. It sits quietly on your windowsill all day, sucking up whatever sunbeams it can catch (even on cloudy days!), and then when night falls, it glows serenely, giving you a nice dose of sunlight even though the sun's gone. £20 UKP.