Typically I'm jammed into a tiny room, but this room (at a hotel) is larger than my studio! My seamless paper is cut down to about seven feet wide (from nine feet) and is on portable stands. I carry several kinds of plastic table skirting in case the venue doesn't supply it. The table is moved out of the way and the paper rolled out on the floor for shooting puppies. I use either Balcar or Novatron strobes (Novatrons for small setups, such as this) and also carry at least two cameras, along with release forms, a bunch of cards, and sometimes prints of one of my stock photos to give as gifts. Everything neatly fits on the 'wheelie cart' in the right corner of the room, making for easy one-man (and/or woman) operation.
Here's the killer: I charge NOTHING for a sitting fee, but in exchange, I get the club to run EVERYONE through my setup! This is how I run my animal hospital studio, and it pays off in the end.
The stereotypical "dog show pose": Dog on posing table showing why it's a great example of the breed, owner behind it, perhaps a show official and a ribbon if it's a prize winner.
I try to also get a simple "pet" shot, sans all of the pomposity of the show. Watch the film "Best in Show" and then get behind the scenes at a dog show ... and you'll realize that film is more fact than farce!
Most of the time, BTW, I don't need to bring a posing table, as they are pretty common around dog shows! Ask first, however!
Following the picture of my setup is a puppy shot done at a show. It's a wheaten colored Scottish Terrier.