I learned this rhyme from my parents: http://en.wikipedia.org/wiki/Thirty_days_hath_September http://en.wikipedia.org/wiki/Thirty_days_hath_September It works

I learned this rhyme from my parents: http://en.wikipedia.org/wiki/Thirty_days_hath_September http://en.wikipedia.org/wiki/Thirty_days_hath_September It works pretty well (I just remember the first two lines). I hope it saves you some time!