Re-reading books re-watching movies. If a particular aspect of a book/movie annoys me, it clouds my judgement. Re-reading allows me to make a less biased review.
Try never watching a movie after I have read a book. Hunt for Red October being a prime example. Re read it and all I could think of was Sean.
Often re-read stuff, especially where there is a series of books and it takes an age for the next one to be released.
Sometimes I only realise I've read a book before when I get to the last few chapters data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
I'm re-reading Robert Aspirin's 'Phule' series at the moment, good fun.
You have to start reading from "light" books, and funny I think data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7