It actually wasn't as bad as I was thinking it was going to be! We, of course, had people that didn't RSVP by the deadline, and we actually still have people that we haven't heard from we the event is 14 days away!!! But overall the menus and seating arrangements were not nearly as bad as I thought the process was going to be.
We had an online RSVP datebase, my FH is a computer dork :D but we were able to save ALOT on stamps this way. So I just signed in on a pretty regular basis and started the menus.
Red=Steak (Ribyeye) Bride's meal
Black= Chicken (Italiano) Groom's meal
Gray= Veggie (Stir Fry)
White= Kids (Chicken Tenders)
To do seating I just used the meals and started to compile groups of families. Then I re-arranged as needed for the number of seats at a table. Our tables seat 8 normally, but I have tables from 6-9. The 9 people table are complete family (mom, dad, 3 kids with significant others) so It just had to be that way, I'm not moving ONE person away form their family; that is crazy!
The menus are obviously all personalized as placecards as well, I just have to work on the seating chart to tell the guests what table they are at.