Creating your own virtual library at home

I have so many books, it became imperative that I buy a Kindle, because I just couldn't work out where to put my books...

... but being the absolute organizing-freak that I am, I felt I needed to catalogue my books, or I would forget or not be able to find them when most required. So I created a catalogue of all my books on an excel sheet, in alphabetical order, with a description of the book and my personal review, so that I could access the novel any time I liked, or read something new from the same author, based on how much I liked her. Has anyone of you done the same?