People use perfume to reduce body smell....
Our minds are programmed by advertisements, magazines and television. The production industry is bent on selling their products and will do anything the "brainwash" us and make us buy them. Our actual body odor is controlled by what we consume and how clean we keep ourselves and our surroundings. Over-eating and over-consumption of alcoholic and aerated beverages will only do bad to our bodies and it will all be reflected on our outer appearance and body odor. So eat healthy and keep yourself clean and you will never have to spend on perfumes and deodorants.
Perfume is not a needed product. It is a product that we want but is not a need, unless, of course, you are trying to cover up body odor. Then all you have is a sweet smelling stink. The only way to get rid of body odor is to bathe, use deodorant, wear clean clothes, wash our hair regularly etc. Perfume can be a nice addition to personal hygiene but it is not needed.