The best way is to do yours on line, then you complete the kids forms online but you then have to print them and fill out 2 or 3 boxes (province, status-married or not-... and something else). Get the passport pictures and prepare the other documents you need. That way, when you get to the passport office, there is a faster line. We went last week and the waiting room was filled, it took us less than 10 minutes and we were done!