This is definitely something to be discussed at the M&G.
There is a sitter in my area who is a student and offers housesitting from afternoon through overnight and then morning, then he's at school during the day. When I housesit, I move into the client's home for the duration of the stay. I discuss with them how often I can leave to run errands, check on my house, grocery shop if it's an extended stay, etc. While I'm there I take in the mail, turn lights on and off, and other smaller chores that we agree on, like watering plants, feed the fish, etc. But basically I live in their house for the entire stay, coming and going as needed.
Topics to discuss at the M&G: do you provide your own food and drinks (I always do, even when the client gives me carte blanche to use their food), who provides towels, chores and other responsibilities, community amenities such as pool or park area, do they have Internet or Wi-Fi, access to TV and other electronics. Be sure to find out how to operate shower and any appliances.