What is your earliest shopping memory?
Buying my first pair of branded trainers. My sister and I both got Pony Baseball boots to wear with our shellsuits. I wish I had the pictures!
What do you enjoy shopping for now?
Objects and curiosities. I have two curiosity cabinets at home filled with finds from jumble sales, markets and my travels. My favourite piece is a voodoo mask from just outside Cape Town.
What is your favourite shopping destination?
Paris. I have bought some amazing old books from St-Germain-des-Prés, the book quarter.
Do you still like to buy clothes?
Yes. But because taking off and putting on clothes is part of my job I try on only jackets and coats.
I am the world's laziest shopper, but very rarely have I had to take anything back.
What is your shopping style?
I am selective. If I do splash out, it's an investment, and I wear things for years. It makes me cross when I hear people say, "It's so last season." I always say, "It's vintage."
What is the most expensive thing you have bought?
A couture Versace dress for my 21st birthday. It was floor-length and I couldn't dance in it so I slashed the bottom off.
Who's your favourite shopping companion?
My dad. He will stand anywhere from Chanel to Topshop and just say "that looks great".
What was your last purchase?
A top hat from the London vintage fashion, textiles and accessories fair.
• Erin O'Connor is an ambassador for Evian's Daily Purity Plan.
