Reader’s Block

Have you ever found yourself looking at your bookshelves for the next book you are going to read and just feel stumped?  I have picked up four or five books in the last two days and have quickly placed them back on the shelf because I just wasn’t feeling a connection at this time.  I feel a little lost without a book to read on my nightstand but I have gotten a lot read in my magazine tray on the coffee table. 
What do you do when you find yourself with a bad case of “reader’s block”?  What is the longest length of time yours has lasted and what was the book that broke the spell?