Woolly write on your calender , on Decembers page, where the Christmas crackers are. Otherwise, they'll be nowhere to be found and you'll never get the same bargain at Christmas.
There is something really satisfying about getting something just right for a bargain price 
My December 1st last year said "Batteries".
I was "Eh?" then realised I'd written my reminder back in January to buy the batteries for the door wreath (pre-lit with a timer, takes 3 of the huge batteries)
Actually, I still have last years crackers, cream&gold to match my table setting last year. They didn't emerge from the sideboard ...[sigh]