I have decided to go with assigned seating for the reception, because of different famillial issues, guests in wheelchairs that need a space left at the table, and because of an activity that I have planned for each table. (each table number corresponds with a milestone anniversary, and the table number placard is actually a folding card. The front will read "please leave us something to read on our 25th anniversary". I like the idea of looking at them 25 or 50 years from now, and reading advice from someone that might not be around anymore. Anyways, while writing up name cards for the seating chart last night, FMIL says, "what if people take their name card and just sit where they want?" and I replied, "I'd really prefer if they didn't, because ----" and outlined the reasons above. She obviously is not taking me seriously, so, my questions are, for those who used one, or attended a wedding where a seating chart was used, is it fairly common for people to just disregard the seating plan? How do you (if at all) relay to everyone that seats have been reserved for a purpose? I don't have an official DOC, so, I was thinking of having my GodMother, who is essentially acting as one, to just quietly go around to people while they are mingling and make sure they noticed the seating chart by the door, and if anyone asks why they need to follow it, just relay what I had planned, they handicapped guest situation, etc.