It's really time to address the fact that I've run out of bookshelf space yet again. Now, don't go telling me to get a Kindle. You know I absolutely won't pay the blindest bit of attention if you do.
Instead, offer me carpentering services, mad scientist solutions for bending space to accommodate more books. Tell me I ought to build up! Don't think the word "declutter" applies here. That's for closets and cupboards, but not bookshelves. You have been warned... proceed with caution.