title: Session vs Call to web service
body: <p>I have a web application which calls WCF service to get an object.
  I requre the object after post back.
  I am using session to store the object for later use.
  The use of session comes with an associated cost.
  The other option i have is to call the service again to get the object.
  I am not sure what is the good way of doing this?
  Anyone any idea on this?</p>