I once had all of my books catalogued and organised. I guess the ones I had up to that point still are – but now, with ebooks and other traditional book additions to my library, the number of books/ebooks I own has probably doubled at least. I should have continued to catalogue and organise them as I added to the library, but alas I did not. I have been working away at doing it now, on and off, for a little bit in recent months. I’ll get there eventually, but it takes a bit of time.
I use Goodreads online for cataloguing and a database on my computer for offline cataloguing. Both have their purpose, and one acts as a back up of the other. If I can get this done, it will be very helpful in using the library for research and study purposes, and also save a lot of time in the long run.