1) When you invite someone into your house; I think there should be some log of items taken from your house; and who took them. For example maybe whenever someone takes an item, they automatically drop a note and you have to approve the taking. Similar to how you now approve people following you.
This is helpful when you have a party and have lots of items lying around.
2) Also there should be a way you can customize the actions to a list of people in advance (not just one) who can access the trees and animals in your house and for how long. Yesterday one of the person on my friends list wanted to access my house to dig up patches for earth for the projects. But I did not allow because I use the trees planted in the patches. I will be nice if I could allow a friend in, but limit his access to harvesting the trees but not killing them.