mate, can I make a suggestion here? Why not find a nice pub with a big garden/ car park, meeting at tescos is a bit poor IMHO as you can't sit down anywhere, cant get a drink or bite to eat, and is just a bit chavvy IMHO.

Our local RSOC meets at a nice pub, and we stipulte good behaviour to keep the landlord/locals sweet, but get loads of free food as we pull lots of people in on a quiet night ( tues)...

meeting somwhere like that is much better as you can all chat and have a drink, and attracts a much larger audience, as most people find standing round a car park a bit sad IMHO...

Good luck with organising it though, I will try to turn up