smudging the rooms with sage is said to be cleansing. I found this online:
The following are suggestions for the use of sage for those of you not familiar with the custom. Some words of caution: sage burns very hot, and the embers stay hot for a long time. Always burn sage in a little metal container, an abalone shell, or some type of ceramic or ironstone dish. Put some clean sand in the bottom as an insulator, and NEVER use glass. When you're finished with the sage, cover it with sand and leave it in the container you were using. When you want to use the bundle again, just shake the sand off. When you light the sage, let it flame and then blow the flame out at once. It's the smoke you want....not the fire.
FOR HOUSE CLEANSING: To cleanse and bless your house or apartment, again use the entire bundle to light. Open your front door. Go to the back of the house, and cover as much of the room as you can reach. Be sure to hold the bundle as high as you can. Don't forget the corners of the rooms. Work from the back toward the open door at the front. Go into every room, including bathrooms, closets, utility rooms, kitchen...everywhere. When you get to the front door, say "Anything not here for the highest and best good of those who live here, be gone. You are not wanted, and you are not welcome. This home has been cleansed and blessed." Then walk out the door, close it, and sage around the door and door frame. Leave the bundle outside to burn itself out. Make sure you put it on dirt, or on something that will not burn.
You can usually find sage bundles in health food or new age stores. Congrats on your new place!