Spiral binding is the solution, but it looks ugly, there is no spine area anymore and the pages rip out more easily. Good for technical manuals, less so for fiction.

I do actually have a few 'publishers proof manuscript' (presumably for pre-press copy editing and review) spiral bound copies of books that I found in a second-hand shop, and although easy to read, the pages got crumpled and torn very quickly when I transported them in my backpack.