Like colors/furniture/lights/etc.

Or sell off the furniture and rent it out unfurnished.

The same thing happened with home renovation, new cars, new furniture.

For the record, we don't spend a lot of time in that "office" room (about 8~10 hours a week for each person -- communicating with the PM, coordinating with contractors, shopping for furniture and home decors, working on the guest book and website, etc.), but we don't use that room for any other purpose. 

I need to move furniture.

Where furniture needs to be, what needs repair, risk management issues (very important).  

Even virtual placement of furniture. 

Further, you would have no Liability coverage if someone is injured at the property.Have your agent check for what breaks the Vacancy (if you have furniture there and someone sleeps there multiple days in a week would that do it). 

(In a large MSA)- How many years do you budget to keep the furniture for?

A lot of room renters expect the room to come with basic furniture as well.