Hello Rajani,
Its better if the documents are in the order which is detailed in the check list.
http://www.cic.gc.ca/english/pdf/kits/guides/3904E.PDFFor example point 5 in the check list says the proof of relation ship. As soon as i have placed the travel documents, I have included all the details like the copies of emails, used phone cards by my husband, pictures of our wedding and reception, greeting cards and telephone billls, my husbands boarding pass when he came to visit me etc.
I have not put any notes as to where i have included as everything was in order. You know what i mean?
By the way, I am Mridula. I forgot my password for my ID and hence i had to create another ID for this forum.
Incase of any other concern, do post it.