Following are excerpts of two different Free Camping Code of Conduct guidelines.

Poly tanks usually don’t have a plastic taste after an initial fill and flush.
Any plastic taste usually comes from garden hoses or poor quality food grade hoses used to fill the tank.
To clean the onboard water tank, try draining the tank, then refill with fresh water and a cup of (Non Scented) Bleach. Any brand [...]

The following link provide some basic details on how to wire 12 volt through your caravan and back to your tow vehicle.
ExplorOz – Caravan and Camper Battery Charging

Another great tip from the MSN Groups Caravan forum on how to refit a window.

Collyn Rivers has written an excellent article on Diesel Interior Heaters which are suitable for heating a caravan. I have reproduced the article for future reference.

Definitive statements that these units are NOT required or should not be used are being promulgated widely on a number of forums and Barry from Cabolture Caravan Repairs feels that these comments can, and will, be taken as gospel by a novice caravanner.

Here’s a great idea to lift your portable toilet without taking up valuable room in your caravan.

Another perennial question often raised is what is a good TV aerial for the caravan and how how should it be mounted on the caravan.
On the MSN Groups Caravanforum there have been a number of posts. Relevant images and details follow.

With global warming being topical at the moment, and wanting to do the “right thing” for the environment we are looking at alternate energy and what better source than from the sun. I’ve quoted a few posts from the MSN Caravanners forum so that I can reflect on them when we eventally consider solar power [...]

Damian Baker at ExplorOz has written a series of articles for anyone who is considering caravanning as a lifestyle. Links to each article follow.