Allowable in your hand luggage, non-spill and easy to refill, the Travalo is a great idea for holidays and work. It's really compact, about the size of a lipstick and perfect to use on the go-go-go. PLUS it doesn't take up too much room in your luggage.
Also useful when you're out and about in general - that massive bottle of perfume is always rather embarrassing to whip out of the handbag, but this is much more discreet! AND no-one knows your perfume is called Oui (always thought that was an odd name for a perfume - "Mmmmm...I smell of Oui")
It's aluminium, not glass, which is a bonus when it comes to breakages (anyone had a perfume refill explode in their handbags? Nightmare, Expensive nightmare!) and the styling is great too. Chic and simple, it's available in a variety of colours. Nice.
It apparently lasts for 50 sprays, and is really easy to refill from your supersaver 500ml perfume bottle at home!