Vinegar is great at getting rid of stinky odors. The science-y explanation is that the acetic acid can neutralize alkaline smells. But all you need to know is that if you soak a slice of bread in vinegar and then leave it to sit somewhere smelly, the vinegar will eliminate that stench. This will work best in a smaller space, such as a trash can. Theoretically, though, multiple slices could work in a room as big as a garage.