Hi Paul,
Like Dave in Cambs, my B is a summer car and is off the road for the winter. At the end of each season I use a similar routine to the one he describes.
In addition to pumping the tyres up, it helps to push/pull the car back and forth a couple of times every few weeks (without starting the engine, to avoid the condensation Dave mentioned) - provided you have sufficient space for doing this.
I ususally leave my battery connected (simply because I can't be bothered to disconnect it) but will trickle charge for a weekend every month or so.
As mentioned, leave the handbrake off to prevent it from seizing.
If you don't want the hassle of taking the wipers off, simply prop up the wiper arms with two wine bottle corks so that the wiper blades hover a few millimetres above the windscreen.
Keep the roof closed, but leave the windows slightly open to allow air to circulate.
I usually also fill a small dish with salt and leave it in the car as a cheap dehumidifier (no idea how much of an effect this really has, but it won't do any harm). My B is also covered, but I don't have one of those expensive snug fitting car covers you can buy - two king size flat bedsheets (100% cotton!) will do the trick.
Regards
Giorgio