Special? No, just the usual - stapled a $20.00 bill to every second page, with a $50.00 every 10th page. ;D
Umm, no, the app was fully complete though - medical done, fees paid, etc, etc. We've been married for five years, so have lots of paperwork vouching for marriage legitimacy, and there are no kids, so that simplifies it.
We live in the Middle East, which I'm of two minds about - one way it seems problematic to me as the police checks and what not are damned troublesome, as well as the added burden of proving intent to return to Canada. On the other hand, the screening and visas that we go through for the local residency visas are quite rigorous, and there is no way that non-legitimately married folks get one. Additionally we have travelled a lot in the US (she has a ten year tourist visa there) and EU over the years, for which my wife had to get visas and various biometric checks in addition to the two TRVs she's held for Canada in the past. I don't know whether all of these visas are a hindrance or a help, but they all have me as her sponsor, which helps to indicate marriage legitimacy. Additionally, we have newspaper announcements here publishing name changes, intent to marry and that sort of good stuff (legally required locally), which is further proof of public knowledge of our marriage.
I expect if there are any problems it will be with proof of intent to return to Canada. I do have a contract termination letter from my current employer and a job offer letter from Canada, as well as proof that I have applied to restart my professional licenses in Canada, and statutory declarations from both myself and folks back in Canada that they are aware of our plans to go to New Brunswick- so I hope that it is enough.