It applies to most areas of economic activity, from heavy industry to prostitution to secondhand bookshops.

Indulge in further money-saving adventures by wandering down to Hay-on-Wye to plunder the town's secondhand bookshops.

Grammarians gathered in secondhand bookshops around rare copies of Varro's satires and Fabius's chronicles and hunted for copyist's errors.

I haunted jumble sales, I discovered secondhand bookshops, I stole my mother's library card so I could access the adult shelves.

But no more cheap and cheerful secondhand bookshops, their produce stacked high, reeking of damp, stained and dog-eared by previous readers.