Fragrance Characteristics
Perfumes are made with different amounts of oils and hence the different descriptive titles: EDP; EDT; EDC etc. associated with perfumes. The more oil that a particular perfume contains the longer it is most likely to last and the more expensive it will be. 
Generally speaking perfume is available in the following strengths:

1. PARFUM:  Perfume duration may be up to 2 days.
2. EAU DE PARFUM: Perfume duration may be up to 10 hours.
3. EAU DE TOILETTE: Perfume duration may be up to 8 hours.
4. EAU DE COLOGNE: Perfume duration 3-4 hours.

Fragrances, again generally, have 3 different notes that develop on the skin when used:

Top Notes (smell of oil evaporates first). The impact of the alcohol when you first open the bottle will impact your initial impression of the fragrance as the alcohol evaporates, and the fragrance starts to dry on the skin.

Middle Notes (smell stays second longest)

Base Notes (the smell stays the longest on your skin). Because the oils all evaporate at different rates the perfume may smell different as time goes on.

As the perfumes we use can and do react with our own body chemistry, perfumes will smell differently on each of us. Importantly, they may also smell differently at different time intervals on each of us.

Apply your perfume before putting on any clothing or jewellery; some fragrances will leave permanent stains on these items

Apply perfume lightly to the body’s pressure points: wrists, base of throat, behind the ear lobes, in your elbows and between the breasts.

Remember the three enemies of good perfume: sunlight, heat and air.
 Store the perfume in a tightly stopped bottled to keep air from evaporating the scent.

Put the bottle of perfume out of direct sunlight. A dark drawer is not necessary, but may prolong the scent of your perfume even longer.Keep the perfume away from any source of heat.