Vacuum thoroughly and regularly
Sprinkle baking soda on the carpet
Let the baking soda sit for several hours
Vacuum up the baking soda completely
Use a carpet-safe deodorizing spray
Open windows to improve airflow
Use fans to help the carpet dry and air out
Clean spills immediately
Shampoo the carpet when needed
Steam clean the carpet periodically
Place odor absorbers near the room
Keep pets off the carpet when possible
Wash rugs and mats often
Remove shoes before walking on the carpet
Use a clean, dry carpet cleaner after stains
Check for and remove hidden odor sources