I am now a solo shooter at weddings, thanks to my, er, family situation. My New Year's eve wedding had hired me as their DJ, then, a few weeks before, added videography (my January 9th wedding has now done the exact same thing).
So, I handled both those things by myself, which, I guess, went just fine. Then, my 5 year old son got sick the next day and, while I was tethered to him for 20 hours (until 3am the next day), I managed to edit the entire wedding, including the 5 minute highlight.
My most obvious mistake was, one of my cameras wasn't set very well (portrait instead of shooting flat) so, I'm doing my best to match it to the other two.