Here are a few tips which will help you keep your fragrance last longer and have it effects enhanced. A few methods can do wonder.
Oudh wood or oil or perfume are used extensively for various purposes. The essence or perfume of Agarwood can be kept for long if it is put on accessories, like rings and bracelets. The oil can be put on the inner cuffs or the inside of the shirt collars which will last for long even after washing. However there are chances of the fabric getting stained. The fragrance will last long on static items, like bracelets, rings, fabric etc., but will not have the same depth as compared to the skin which has a tendency of taking in moisture; it will absorb the oil or fragrance faster and keep it strong. It will be more complex and layered and will have more depth. But it will not last long and will stay till the fragrance stays. But the lingering smell is definitely something you will long for and want.
Earlier oud was used mainly in the Middle East and South East Asian region, but in contemporary times the west too uses it as boutique scents. In the Muslim world or the Middle East, it is usually used for fumigation and incense. Therefore a useful tip for such usage would be to burn the wood chips on mica plate other than coal as it will give a cleaner scent. If you are using coal to burn the wood, you should not burn or prepare it too hot as then you might encounter some coal scents too during the fumigation. The best way would be light your coal not through stove, but blowtorch lighter which is used for lighting cigars. Light from the sides and not the center of the coal, and place the wood chip of oud immediately on it. This way you can avoid the coal scents and enjoy the oud scent which will stay for long and smell strong too.
If you fan, the oud smoke will help to get more scent out of the incense smoke. Just use a newspaper to fan the smoke when fumigation is taking place. You can also fan it in every corner of the house you want the smell. Make sure not to fan the coal directly as it will also fan the coal ashes which will make a mess too.