I once mentioned to a coworker that I like to use some name-birthday combo for my passwords. I got an instant, "Oh, that's not very safe!" I just laughed...with 7 kids, 4 grandkids, and date combos that may be month day, month year, year day, month day, etc., with name first, nickname first, name last, nickname last...even my own kids have never guessed any passwords, and they know all the names and dates.