How to send documents to US universities

Gather all the documents which are specified in this page.
 http://usauniversitiesandfees.blogspot.in/2013/09/common-application-documents-required.html

• Place only Bachelors degree transcripts into university provided envelope and that envelope should contain stamp of the university otherwise some colleges will not accept.
• Place all the Letter of recommendations in second envelope and  it should have a college seal on the envelope.
• Place all the other documents into third envelope.
• Now put all the envelopes into Single big envelope.
• Write the from and To address clearly and specify the phone number of the university.
• Finally write on the envelope to which semester you are applying.