If you have a favorite scent that you love then here is a way to make sure it is all over the house. And if you vacuum as much as I do then this is also the best and most perfect option for you Personally, my favorite scent is vanilla - I just love that fresh vanilla scent. I have vanilla oil but I could also use vanilla extract if I wanted too. You just drop it into your vacuum cleaner bag and when you vacuum the smell with permeate throughout the room. You can do this with any scent so for the holidays get some peppermint or for that romantic evening dip it in your favorite perfume.