OK, I wasn't go do add any more challenges. But then I discovered the Read to Me Picture Book Challenge over at There's A Book and I couldn't resist!
Given we read 3 books to our 5 year most nights for bedtime stories (we had to put a limit on it or we'd be there all night!), plus the other incidental reading you do children. I reckon I should be able to manage the Harvesting level of 200 books.