For those in Milan on a Saturday, a detour to the Fiera di Senigallia is more than worth it. It's hidden at the end of Naviglio Grande by a defunct warehouse. From stolen bikes to, well, more regular crap - such as heaps of clothes for under 3€, enough fur to keep an army warm, shoes, books, accessories of all kinds (baskets of dolls' eyes was my favourite), bags, old magazines - there'll be enough to keep you captivated for a couple of hours.
Yesterday I got myself a wool coat, patent leather shoes and a rabbit fur hat, all for under €20. A quick spin in the freezer and it'll all be as good as new.
And if the piles of old stuff isn't enough to entice you, def worth it simply to see young & carefree Milan out enjoying Saturday. Looking beautiful, of course.