Here's is one of those jobs that you start and then wish you hadn't. We literally have hundreds of books, and it is difficult to part with any of them. From time to time they cause the shelves to bulge at the edges, and normally at that point it is time to have a sort through.
Some become Bookcrossing books, but most go back on the shelves, slightly re-ordered, but better stacked, and neater and tidier. Today however I feel we have reached a tipping point. No matter how hard I try they won't all go back on. It's time to face facts. We have more books than we have bookshelf space for. Something will have to give.
We need more shelves!