@msolga,
I usually put it on one of the shelves when I have read a book.
No, I don´t hang on on to every book, but most of them.
I usually read a book as soon as I get it or buy it. If I start a book and it is not my style I don´t read it. I don´t have any books I might plan to read sometime in the future
Books I like or need like dictionaries are precious to me, others I give away especially to Lion´s or others who resell them. Often I leave a book in a hotel or train when I have finished the book for the x time or if I am not interested in it any more.
which books would I not get rid of. Books I really enjoy, books that are old, like the lovely small "pocket books" from the turn of the century 1800/1900.
Books that my aunt made as book binder, books which have been my great grandparents´, grandparents and parents, books I really like to use for teaching, old schoolbooks back to 1890-1910. (they were not my schoolbooks)
I don´t care if I off-load a paperback or a hardback. The book means something to me - not the cover.
Read and pass on immediately idea is nothing for me. I often read a book again and again . Find connections between different kinds of books which is interesting to discover.
I buy less books, but still buy books and also go to the library.
I do get rid of books as I have no more space in the bookcases. I have to because 15 bookcases 9 of them from floor to ceiling is enough. There are no more walls to put up another bookcase
(Finally, are you still buying as many books as you did, say 10 -15 years ago? Just curious.)