I used to spend most of the September term collecting non perishable C*******s food items, adding a few to my weekly shop each week so it wouldn't break the bank. All the pudding and cake ingredients and so on, jellies, blancemanges, packets of stuffing mix, cranberry sauce, things like that.
A younger colleague asked me one year how many packets of marzipan she would need to cover her cake. I said, 'oh about 10 or 12'. 'TEN OR TWELVE?????' she asked, 'but that sounds way too much!'
'Well no, not really', I said, 'because what happens is, I buy two packs and then eat them so I have to buy 2 more. Then I eat them, so I have to buy 2 more. And this goes on till a week before C*******s when I panic and actually put the bloody stuff on the cake as soon as I get back from the supermarket to stop me eating it again.' 

