I finished the new book "59 Seconds - Think a Little, Change a Lot" by Richard Wiseman. Here's the book's website. Here are a few of the tips he offers in the book:
Develop the gratitude attitude
List three things a day that you are grateful for. It can increase your happiness, optimism and health.
Buy a potted plant for the office
It can increase creativity by 15%!
Visualise yourself doing, not achieving
Visualising yourself having achieved your goal can lessen your chance of succeeding, whereas visualising doing what you can do to achieve your goal can increase your chances.
Touch people lightly on the upper arm
Touching on the upper arm can demonstrate high status. When tested on the street, this strategy increased the success of getting telephone numbers from total strangers by 10%.
More tips can be obtained from following the stream of pages beginning here.
I wasn't very impressed with the book. I've come across almost all of the tips in other books. This is probably because the book seems to present a pile of tips collected from various people's research and other sources. I got the book primarily because I've read good things about Wiseman's other books: Quirkology and The Luck Factor (which are not available in audiobook format).