Panic stations!

Although I've been to lots of fairs over the years, I've never had my own stall before.  So next week, when I'm taking some of my houses to the dollshouse fair in Nantwich (http://www.dollshouse-fairs.co.uk/Our_Fairs.html), will be a first.  And I'm starting to panic.  The houses themselves are just about ready, and the photo shows the first practice layout on the dining room table at home.  Will everything fit? How do you make the stall look attractive? How will they all fit in the car....?

ps - Hello Michelle! (my one and only blog follower, so far...)