I was listening to an author called Steve Carroll on the radio today and something he said struck a chord. He had just finished reading a great book and said he deliberately slowed down as he read the last 200 pages.
Normally I read everything at speed, but there are a few books that I've felt were so special I didn't want them to end.
Around halfway through I would try to slow down and ration myself in order to prolong the experience.
The Time Traveller's Wife was one of these.