I previously asked, How can I ask my housemate to put my things back? Someone suggested that I could have avoided ever needing to solve this problem by establishing boundaries early on.
I'm also looking for a new house with established housemates right now. I'm using a website and I'm refining my marketing boundaries. I'm also refining the initial message I send.
An answer in the linked question suggested setting boundaries such as tidiness and noisiness early. Another commenter suggested that it could be annoying if I ask for too much too early.
How can I establish my boundaries early on in the process of moving in with new housemates while not creating problems?