Do you have a few hours, over lunch, once a week that you could give to the Community Fridge near Windsor Boys School?
Why not pop in, say hello to Tiia and see how you can help them not waste food.
Most of the local supermarkets give food to them and they then give it to anyone who walks in the shop. This is not about feeding the homeless. They do benefit but ANYONE can walk in, pay £1 and walk out with a number of items.