To shred or to tear: that is the question. Robert Cockerham of cockeyed.com [1] decided to put the matter to a test. His test subject? A newly received Chase Mastercard pre-approved application.
Step 1: Robert tears the application into small pieces.

Step: 2: Robert meticulously lines the torn pieces up and tapes them together, like so.

Step 3: Robert fills out the application, replacing the current billing address with a new one (his parent's house) and using his cell phone as the phone number on the new account.
With that, he mails it in.
Step 4: Robert excitedly receives his new credit card at his parent's house and activates it using his cell phone.

Analysis:
Read the whole story on Cockeyed.com [4].
Links:
[1] http://www.cockeyed.com
[2] http://www.amazon.com/exec/obidos/redirect?link_code=ur2&tag=fightidentity-20&camp=1789&creative=9325&path=external-search?search-type=ss&index=electronics&keyword=cross-cut shredders
[3] http://fightidentitytheft.com/junkmail.html
[4] http://www.cockeyed.com/citizen/creditcard/application.shtml