If I like Prada Infusions D'Iris..

[MashedTaters]

(but find it doesn't last on me) what else should I look out for when I go through Duty Free in a few days?

Get the body lotion which is stronger and worn together should make it last longer on you.

If you want something different try Chanel no 19 Poudre. Not to be confused with no 19.

www.johnlewis.com/chanel-n-19-poudre-eau-de-parfum-spray/p1725549?sku=233990406&s_kwcid=2dx92700045366227041&tmad=c&tmcampid=2&gclid=CjwKCAjw36DpBRAYEiwAmVVDMAiMsjzb6cmZfzYlAGn8pPihLtxABpYzIy4S0-NsW6-c-oN7MdD3uhoCAj4QAvD_BwE&gclsrc=aw.ds

Perfume Parlour do a perfume oil copy of Prada Iris. Use that first and then spray the Prada original on top.