Strong smells, especially positive ones, are strongly tied to emotions and memories. Think of the following smells: hot buttered popcorn, chocolate chip cookies, freshly baked bread, sautéed garlic. Even just the thought of them brings up emotions and memories. Imagine how much stronger those would be if you actually smelled them. What if you had to deliver your marketing messages solely through your customers’ sense of smell? How emotional do you think the response would be?