Candles can be most useful when a power outage happens at night. Trust me, I know. That is if you live in a rented flat on an old building like me. But what happens if you know where you put the candles but can't find any matches? Jeremy Walton must have come across this nasty situatsion more than once in his life as, in 2002 he designed Hygge-lys, a candle with a built-in matchbox.