I started tracking my books long before I joined Goodread's. I opened up a page in Word, set it for 2 columns and set up a list of genres... then I added books as I finished them.. using the month as the header under each genre. I also have a personal home library with close to 2000 books. I use a software program similar to the ones in the public library.

Thanks Nora-adrienne!
I'm going to try that method!
I used to have a large number of books myself, but life got in the way and I had to get rid of them :-( It was a very hard thing for me to do.

I'm the same as you, never kept track before. I used a spreadsheet at one time to keep track of the books I've owned. Once I even made an Access database. Now I'm trying to get all my books into Goodreads. The hard part is getting all my kindle books logged when there are so many free books out there.