How much 'pet' stuff do you take in the caravan

Here's my list, six throws to cover the seats at the front where they sleep (I know I know), two single mattress protectors in case the dogs are wet, two dog towels, doggie bags, chews for their teeth, dog biscuits, various balls, brush, feeding bowls, a stand to place their bowl in as they musn't eat at ground level, collars, leads and food.