you really need it in the room you are working on, or if it would better fit into another room, or if you should donate it, to goodwill. you do not have to put everything back into the room that you took out. get rid of whatever you have left after arranging each room. this is considered clutter and can slow down your positive energy.
arrange furniture so you can face the doors while sitting. mirrors are good in most rooms, but once again avoid their use in the bedroom (invites third parties into the relationship) and also they should not face the front door as this causes chi to bounce 