Many of the newer designed trash containers have hooks on their upper rims for grocery bag handles as the number of trash bags used in a week is approximately the same number of bags brought home from the grocery stores. Customers find that the 13-gallon bags at stores are cheaper than the odd sized ones and are more apt to be on sale. With the average trash emptied every night, the trash odor does not have time to accumulate in the plastic trash container.
Baking soda: This is also a good absorbent. Put a generous amount of baking soda in an uncovered container (the size of the container depends on the size of the confined area) and leave it for several days. Remove the baking soda and replace it with new one and leave it for a couple of days. Continue replacing the baking soda until it has cleared the trash can smell.