According to supermarkets in Britain, sales of premium lavatory paper increase substantially in December as families try to impress their in-laws, parents and other guests they will welcome into their home at Christmas. Sales of filter coffee and Earl Grey tea also jump, as consumers hide the lesser brands at the back of the cupboard, to try and impress their guests with their refined taste.
(Source: The Telegraph)
I do exactly the opposite when the relatives turn up here.
Hide all the good stuff and dish up Chateau Cardboard and Nescafe.