Originally posted by willic
I favour a book!
A life saviour on my last tour when I was stuck in my tent for 2 days owing to heavy rains and a howling gale.
Tear the pages out as you have read them , lightens your load (well slightly!)
They also double up as tiolet paper!! 
I cant help feeling that tearing pages out of a book is sacreligious and barbarian even if its only a guidbook, that I want to lighten up.