I made my own carpet air freshener, with things I already had on hand today.
I had a bottle of dollar store baby powder, some lavender essential oil, and baking soda.
I put some baking soda (around 2 tablespoon) in with the baby powder, added 3 drops of lavender essential oil, shook it up. I then sprinkled it on the carpet before I vacuumed, and it worked and smelled wonderful!
Just thought that I would share that.