The link below is to an article that takes a look at 16 signs you’ve been in the bookstore for far too long. For me, a general sign of being too long in a bookstore is the reduced pressure in my wallet and the weight being carried in my arms.

For more visit:
http://www.barnesandnoble.com/blog/16-signs-youve-been-hanging-out-too-long-in-the-bookstore/