Four questions. One place to start.

How many you need

You do not need five. Most people are served by one: the edition they reach for without thinking, until it smells like them rather than like a product. A few want two — one for the day, one for after dark. Past that is collecting, which is a different pleasure and an honest one.

If you cannot choose, wear them first. The discovery set holds all five at 2 ml, one for each day, and the house will answer if you would rather describe what you like to a person.