Repaying kindness

I'm a widow in my seventies. I've had a bad year healthwise and have been so grateful for my army of friends, family and neighbours who have looked after me in many ways. They have brought me things, sent flowers, ferried me about and regularly checked up on me. I have offered to pay petrol costs but they have all refused, saying that I would do the same for them. I would like to show my appreciation in some way. Any suggestions please?