This, in clear red letters, is what happens when economics go wrong.

BBC: Greece: What's burning is consent

The day I visited the prison-turned-museum, a woman was outside it selling T-shirts, one printed with "Good Morning Vietnam" in red letters.

CNN: 'Hanoi Hilton' now holds only painful memories

Experts say shoppers should prepare themselves for a high street where the dominant colour is red: as in posters with big red letters advertising year-round sales and many more "For Lease" signs.

BBC: 99p store

The sale of the Rockefeller Center floors includes naming rights to the building, which has featured giant red "GE" letters at its top since 1988, a prominent part of the New York skyline.

WSJ: General Electric gets out of the TV business

Converted to look like the character's mobile sorting office, the red Luton van is crammed with everything from old letters and postcards to furniture covered in stamps.

BBC: Kilter Theatre performs play in back of van

Each car receives a special red license plate emblazoned with the infinity sign and the letters AU, for autonomous vehicle.

FORBES: Audi Follows Google's Lead, Gets Pass For Driverless Cars

If you really must keep one credit card in your wallet, wrap a piece of red paper around it and write in big, bold letters EMERGENCY.

FORBES: Ridding Yourself of Credit Card Debt