Photo: Wikimedia CommonsFounded in Porto in 1887, Claus Porto is Portugals oldest soap and fragrance house, and its flagship on Rua das Flores is a jewel-box of art-deco packaging and scented bars. Staff will talk you through the fragrances and gift-wrap beautifully. Even if you buy nothing, the shopfitting alone is worth a look. Pick up a classic Deco soap as a lightweight, sweetly scented souvenir, and ask about the barbershop range upstairs.