Buy bicarb from the pharmacist - 2 kilos for just under £5. They will probably have to order it for you. Use for house and laundry cleaning. Search on the internet for uses - hundreds of them. It is very good for skin. Put it ( small cup) in the bath for itchy skin problems. I mix it (tablespoon)with soap suds and massage dry and itchy skin in the shower. Mix with shampoo (tablespoon) and get squeaky clean, shiny hair (it's good for slight dandruff).
