After one of my fairly regular bookshelf culls, I put a pile of books into a basket and put it in the porch way of my church. The notice beside it said: ‘Summer Reading. These books are free but you can make a donation to the church if you so wish.’
After only a few days the books had all gone and so I removed the basket only to have several people ask me where it was. I replaced it with a couple more books and now it has taken on a life of its own. Other people are putting books there, some are disappearing never to be seen again whilst others seem to come and go. Some people are obviously choosing to use it as a sort of library. Nice!