shovetheholly -
I think the year goal is a really good idea. Perhaps part of my mistake was not putting a time limit on myself?! Here's to reaching goals :) 
BettyBi0 - Some more questions for you pros: 1) Is it possible to do it all bit by bit? I only ever seem to have 1-2 hour chunks of time between jobs/family stuff.
Yes! This is me too. I couldn't face taking out ALL of my clothes and putting them all over the bedroom (baring in mind clothes is meant to mean clothes, shoes, coats, handbags, underwear, slobby gear, hats and scarfs, beachwear, etc) Ye gods I would have had just about enough time to get it all out and that would have been the end of it! No time to do any sorting. Chaos.
With a toddler i get an hour at nap time, fingers crossed, and maybe half an hour with her 'helping'. I clothes in managable chunks. I let the areas i kept my clothes dictate the amount. Rail one day. Drawers the next. Bottom of wardrobe the next. Bedside table the next, ect.
I've just done books, dvds and games in the same way.
I know you're not meant to do it by location - room by room, but technically i wasn't. As i went round on a clothing day doing Clothes in different places i ignored anything that wasn't an item of clothing. When book time came they were in different places, different days, but i ignored anything which wasn't a book IYSWIM? It still works.
I do think my only teeny weeny criticism of the book is that it is geared to the single person who lives alone a little bit, with whole days to dedicate to each catagory. There's no way i could cover my living room floor with books and spend ages musing over them. I had to do it in bits.