For the past 1 month, my girls, my mil and I have been ditching the elevator for the flight of stairs.  On days when we are not in a hurry to go to school, ballet class or tuition class, we will all use the stairs instead of the elevator.  Sometimes when I am feeling a tad lazy and about to press the button for the elevator, my girls will remind me to walk up using the stairs.  We live on the 5th floor and the level is just perfect for us to use the stairs.  On some nights after a heavy dinner at a restaurant, we will also climb up the stairs to burn off some calories.  It is also a very effective way to teach Baby numbers.  On every floor that we stop at, I point to the number on the wall.    If I add up the calories I burn from stairs climbing for a week, it is enough to burn off that ice cream treat I reward myself once or twice a week!