Occasions and etiquette
Everyday perfume vs special occasion perfume
An everyday perfume fits your repeated routine; a special occasion perfume serves a particular mood or event. One fragrance can do both if you enjoy it and manage its presence appropriately.
A HUME Fragrance buying guide

Define the everyday job
Regular work, transport and casual errands should determine whether a fragrance earns frequent use. A dramatic first impression is not essential.
Give the second scent a purpose
Choose a different texture or association rather than a near-duplicate bought only because the occasion sounds important.
Choose quantities sensibly
An occasional favorite may not justify the largest bottle. Compare current sizes and likely use without assuming a fixed spray yield.
Try this before you buy
Write the specific experience a second fragrance would add before expanding your collection.