I know (because nice people tell me) that my books are held in some public libraries I also know (because I sneak in and check) that they get borrowed. So I've registered for Public Lending Right. Which means that when my books get borrowed, I get (a tiny amount of) money.
So now you can support the arts without spending a penny. Just go into your local library and ask to borrow my books. If your library doesn't have my books, ask nicely and they may get them. Again, this costs you nothing and it means a lot to me. Most importantly, it means lots of new people hearing about The White Rajah and Cawnpore and reading them and enjoying them.