Ability to 'mark' nodes and build a book functionality I am looking for ways to do the following:


users (both anonymous and authenticated) 'mark' nodes in some fashion to say that they want paper copies sent to them
users can set quantity of the paper versions they require
users get review their 'marked' nodes and potentially add/remove items from it
users enter in address to postal system


This problem could probably be solved in several ways, what is the cleanest?
For 'marking' nodes, you'll definitely want the Flag module.