There are instances in life when one is not in the right spirits(bored/lacking purpose/disappointed etc.) And what has worked for me is Books. Though I picked up the habit pretty late (College first yr)I have been avid reader and read any/everything (except the course books :-P). As I said most times in my life so far, whenever I have come across a situation as such, the prime reason has been me being away from books. The moment I get back to my habit things start turning around and the problems start disappearing too. I have a small collections of books some of them personally signed by their respective Authors. Others mostly bought from LandMark store or others.
I would end the post with a number one(1999-UK) single from the album "Something for Everybody" which I heard for the first time last year, through a very good friend/office colleague of mine whom I don't see often since both of us work with different teams now. It sure lifts your mood