I'm bad at rehoming books, but I do it from time to time. Those with useful information that I no longer need (I've given up on the idea of living off grid, back-packing across anything larger than our back pasture, eating off the land - including the book with recipes for pond sludge soup!, or moving to France, Italy, Sweden, etc.) or coffee-table bools with lovely pictures go to the library book sale. Those that are aged (pre-1970) are often sold in one of our antique/vintage booths. It's been many years since I've bought a fiction book - that's what libraries are for, lol. So I don't need to worry about those! I still have a lot of books, and still manage to buy one here and there, sorry to say. If I find myself the recipient of an unwanted novel, I give them to my sister to leave at the laundry she frequents, as it has a leave-a-book/take-a-book shelf, which I think is a lovely idea.