Prepare skin, then reduce the dose
Hydrated skin holds fragrance more evenly. Use an unscented lotion, wait a minute, then apply fewer sprays than you would in dry weather.
Humidity amplifies projection even when longevity feels shorter. Reapply only after checking how the fragrance reads to someone at conversation distance.
Protect the bottle
Keep perfume away from bathroom heat, window light and repeated temperature shifts. A closed cupboard in a stable room is enough.
Leave the cap on and keep the bottle upright. Good storage preserves the balance of brighter materials over time.