Then, I opened up my spreadsheet. jlighton took a look and allowed as how whatever tool he uses would probably have some trouble with my older books. And, I buy used books a lot. And, as I'd thought, most of the paperbacks I've read are already in my spreadsheet.
I've piled up the unread ones in the front layer, and I even pulled a few books off the shelves to go out. So, I was able to fit some of my recent purchases on the shelves. Not many, though. I still have about 90 books to find room for, and only 20 of these are regular paperback-sized.
There's a stack of manga, but that doesn't worry me. The manga are the books jlighton figured the cataloging tool would be a natural for, but, as I told him, there's a fair amount of turnaround, as I realize that I'm not going to reread a particular series. Cataloging these are actually quite easy, as I'd just use one row per series and indicate which volumes I have.
No, the manga aren't a big deal It's the 65 - 70 large books I have. I've read some comments on Tor.com from people who will not buy paper books any more, only ebooks. I don't know if I'll reach that stage, but I sure haven't reached it yet.