I lit a candle on the fireplace mantle and it released a light scent of vanilla. As I looked around the room, I realised there were dozens of smells available to me. A bottle of lavender hand lotion was on the table, my favourite perfume, Pomegranate Noir from Jo Malone beside it. The cat came in from the rain and I could smell grass and wet fur.
When writing, one of the senses we often overlook is the sense of smell. The ability to describe things in terms of their smell can add depth to your writing. Give it a try. Describe a room, now carefully describe elements within it by their scent.