I would like to see a drop down menu in place of the visit primary residence that would allow you to visit all the houses the person has set to allow in permissions.
Would also like to be able to right click on a house in the map menu and have it list random users that have that house I could visit. People would of course have to give permission for their house to appear on that random list.
And one more thing (for now) we need a guest book in our house people can sign as they visit. The guest book could either keep the message so we can read it when we return to the house or the message could be sent to us in the mail. Short of that at least we should get a list of people who came visiting.
I visit homes of random guild mates and sometimes send mail telling them how much I like the house or comment on something I really liked. The responses I get back show me that a lot of people would like comments on their homes.