What happens next?

How to smudge a house
Use sage if you are not following a specific tradition.
Dozens of native american tribes and other cultures have their own smudging ceremonies, and each one has its own traditions concerning which plants to use. Sage is probably the most common choice, and is especially important for the cheyenne and other great plains cultures.
While many cultures consider white sage to be excellent at driving away bad spirits or energies, other varieties are commonly used as well. Consider cedar instead if it grows in your area.