Every so often you come across an idea so simple you wonder why it hasn't been done before, so genius you wish you'd had it first. I came across it in Tesco at the weekend. When you have four school-age kids all wearing grey socks as part of their uniform but in (UK) sizes small 9, small 12.5, adult 3 and adult 9, you become absolutely demented after a wash trying to pair socks and then work out whose are whose. I had even taken to only washing one child's clothes at a time as the only way of getting round this issue. Tesco - I love you! Tesco has started printing the size of its school socks on the inside of the elastic at the tops of the socks. Genius! I take my hat off to them! Praise the restoration of my sanity!