What do we do on boxing day?
Well these days, I guess we recover from the Christmas-Turkey. Christmas Day we traditionally eat too much, so we need the next day to recover and eat all the left-overs from the day before
Find out about the traditonal meaning of the day here: http://homepages.tesco.net/~derek.berger/holidays/boxingday.html

Don't you get two days for Christmas then?