I was wondering with so many supporting documents to be provided for my sponsorship application for my wife, how do you attach a note to explain what is what? For example, I have to provide proof that I am sending money to my wife. I have a receipt from the money transmitter that I use. But, do I need to write a note on a piece of paper and attach it with the receipt? Do I staple it? The same can be said about e-mail logs, trip tickets etc. etc. Sometimes it is just a thin peice of paper and if you use paper clip, it may get loose and get lost.