When I decided to take a break to write, I really should have been stricter with myself and only started one book. Instead, I started three. While multitasking and context-switching may be a good thing in the fast-paced, high tech world of the Internets (and I'm not convinced it is), there's a chance it's really unhelpful when you're trying to write a book.
That said, I have at least finished one of the books:
How to Catch a Cold
It's a pencil and watercolour illustrated story about a boy's attempts to avoid school by catching a cold.
Now to move onto the second stage of book writing: wallpapering my bedroom with rejection letters.