Reading habits

I don't seem to be very good at reading a bit of a book. I can turn off after a page or two easily enough and think, don't fancy that one, but I can also--and this happens more often than not with books I don't finish--try and like a book, and attempt to get into it, and then find myself well over two-thirds of the way through with absolutely no intention of finishing.

It nags at me though, all these unfinished books, maybe they had brilliant endings.

As the ladies and gentlemen from Cadbury's creme eggs would say, How do you do it?