I plan to always have a random page of newspaper in my bag now. It's interesting to observe how differently your mind works when you are trying this. You have to try to read a passage not for its meaning, which is quite difficult to do, but for a potential different meaning. The sports pages are surprisingly fruitful - lots of metaphors - and dramatic language with very emotive words in the quotes from sportsmen which the writers clearly love - a whole new ball game (ha ha).
Oh, I love this writing lark....