Sign up to order a Sainsbuy's card which can be loaded with as much money as you wish to spend in store.  For every £1 you spend through your card, the school receives 4 pence.  There is no cost to you, and because it is administered by parent volunteers, there is no cost to the school.  In 2018 we made £1200 for the school this way, and there is potential for so much more.