1. Washing machines. With two loads of washing to do on the trot I remember a conversation I had this summer with a friend's mother. She told me how when she was a very little girl she helped her own mother doing washing a copper - heating up water and stirring the clothes round and round and round. They had to be put through a mangle and then hung out to dry. 'It was hard on our arms and it was very hard on the clothes.'
2. Takeaway food.
3. Clean handkerchiefs.