Neighbours

Some people have trouble with the people who live next to them.
We have trouble with ours; they house sit if we are away, they dog sit if we can't take them with us, they go shopping for us to a big outlet warehouse, and even sort our dustbin out when I forget.
They do all this and then buy us flowers (see picture). What can you do with people like that, other than say a great big THANK YOU.