This one is too good not to share! From a blog by a bridal blogger named Stephanie Herbst, on Huffington Post, March 30, 2013:
http://www.huffingtonpost.com/stephanie-herbst/7-ways-to-ruin-a-wedding-_b_2975552.html
I think I would add one more: Don’t stand in the aisle to take a picture of the procession or stand in front of the photographer during the ceremony. If you have family member who thinks they’re going to ‘discreetly’ take their snapshots during the ceremony, think about how that’s going to look in your pro pictures. Here is a great example by Bob Sigler.