We know from the Bible that the Wise Men showed up in Bethlehem and gave the baby Jesus gifts of gold, frankincense and myrrh. Now, gold is always a nice gift, but frankincense and myrrh - at least according to my dictionary - are gum resins. Who gives gum resins to a baby?
The answer is: men. The Wise Men, being men, didn't even START shopping for gifts until the last minute, when most of the stores in the greater Bethlehem area were closed for Christmas Eve. The only place still open was Big Stu's House of Myrrh.