My ex-parents-in-law have just sent a cheque to buy Xmas presents for my two sons, which is very nice of them but they have sent £125 with a note saying £75 for eldest DS and £50 for youngest. Both are "grown up" ( eldest is 18 and youngest 16 ) and I can't quite understand why there should be a difference in the two. I'm thinking of just splitting the money between them and ignoring the note.