Ours was just received this morning! We followed the instructions by the book. No folders, binders, elastics, envelopes or anything like that. At most we used 3 clips, one for the 20 photos, one for the two headshots, and one for our rental agreement (which was huge!!) The only "extra" things we sent were e-mails confirming all of our flights over the years, and some gift receipts. We didn't submit a personal testimony, aside from what was written in IMM5532 (Relationship Information). We just filled up the whole box on that page.