Are there any good ways to go about getting two people upgraded for free/cheap to Economy Plus (or better) on an international flight? I fly out tomorrow to Japan with a friend and at 5'10" I would really appreciate those extra 5 inches. Looking at the seat map, economy plus is almost totally empty whereas regular economy is totally full. Would asking at the counter do any good? I just got my United MIleage Plus explorer credit card today, if that helps at all... Thanks!