I know this because I do the laundry and he's been putting his other clothes in the basket, but a couple of weeks ago I realised I hadn't washed any of his socks for a while. Out of curiosity I made a little mark on the calendar and that was 2 weeks ago. Today I had a look in his bedroom in case there was a pile of them gently humming somewhere, but no, he must've been wearing the same ones all this time. I'm not going to say anything, I'm not his Mum and if he wants to wear socks that would be quite capable of walking around by themselves that's his business. Be interesting to see how long it takes him to realise.