It's something my mum seems to have taken over. She produced a table a few weeks ago, as she was "just playing around with it", and that seems to be what were having now apparently! Thing is, I can't really see any other way to do it.
We have a long top table, then 7 other round tables. 3 rows, with 2 tables in the outside rows and 3 in the middle. Our friends have been allocated the 2 tables in the middle row towards the back. Does that make sense?!
I think I'm more annoyed that we didn't all sit down together to come up with the arrangement, which was supposed to be the plan.