Ah, the sun's back. Which means it must be spring. And time to do some painting, which is exactly what I've been doing all weekend using - you've guessed it - ECOS paints. I'm going to eulogise here: they're brilliant, although 20 litres worth of classy green, lurid yellow and ordinary white (my names, ECOS isn't that silly) did set me back a painfully steep £140. So why the monster price tag? And what's so good about them?