Getting Prepared for 2021

Touring this year is going to be a bit different. It's probably be a bit busier with foreign holidays more or less banned, and in addition site facilities (toilets, showers, and dishwashing) will either be restricted, closed, or even if they are fully open, probably a lot busier. So, in a small caravan like mine with no onboard toilet or hot water, or space (!), what can be done to prepare for this years touring? I'd proved this little van can handle 'no-facility' CL last year, and to be honest, in many ways I preferred it. No more strategic timing of shower trips, queues, or (being polite) facilities which previous users have forgot to clean properly!! What I'm outlining here is the equipment I'll be taking with me to make by Eriba Puck self sufficient. The van is already fitted out for solar, which works a treat, but I will be mainly on sites with mains power which I'll be using for heating with my fan heater, boiling kettles, and for my toaster or Remos...