Aaargh! DS (just 16 and 6'2") has started 6th form and has to wear a suit and tie every day load of ridiculous pompous rubbish....-- 
He already has a couple of suits, but has grown so much in 6 months that the trousers are now halfway up his calves. He has a 32" waist and 35" inside leg. Blardy M&S are completely out of stock in ALL their formal black machine-washable (essential!) trousers in his size. Blardy Next start their Extra Long trousers at 34" waist.
I am also desperate for ideas for casual cargo / linen etc. trousers for him. Places like H&M and Topman seem to have 31" as standard length and DS is starting to look v.v. silly with Norman Wisdom stylee trews flapping above his ankles, poor kid.