Do you change anything for bedtime when it comes to babysitters?

Our bedtime routine for our lo includes time in our bedroom. She uses our toilet for potty and tooth brushing, and we all climb onto our bed to read books before we go to her room and sing. Do we just tell the babysitter to use our bathroom for the hygiene things and then tell her to read and sing in lo's bedroom? Or should we take the potty and toothbrush stuff downstairs and ask her to use that bathroom? I'm afraid that will throw our lo off...she's a routine junkie.