DS is 10 months old and we're planning to change his name because, to me, it's still just wrong. In fact we're going to just swap over his first name and middle name. I'd like to do it officially (ie birth certificate), but given the huge amounts of things to change (bank accounts, doctors etc) I just wondered what the MN jury was on leaving his names as they are and just calling him by his middle name? I know it's a relatively common occurence, but it's always struck me as a little odd (I know, no odder than changing an 10-month old's name!). I wonder whether it would be a pain forever saying "his name is x but he's known by y" for anything official, and whether he'll end up being called both names by different people. Any thoughts gratefully received!