Expecting in July. Still some debate about surname. I already have a double barreled name and am unwilling to "pick one". So three surnames is never going to happen. All the same, I am slightly worried about the hoops I may have to jump through to travel with my child if unaccompanied by his mother. I read on a US site that a notarized letter would be required from his mother any time I travel without her. Does that seem right? Would a copy of his birth cert be sufficient? There's a Guardian article about mother's with different surnames getting questioned by Border Control and being able to prove a child is theirs.