We've all been there. It's 2am and you've danced the night away, and now your four-inch heels mean the soles of your feet are burning so much you can barely walk to the cloakroom.
Cue undignified barefoot sprint to a taxi. . .
So perhaps weary Louboutin-lovers should instead consider picking up a pair of Rollasoles, which give anyone who can't stagger on their stilettos another option for getting home.
The £5 ballet flats - handily dispensed from vending machines in pubs and bars - are the brainchild of 27-year-old entrepreneur Matt Horan from Bristol.
He came up with the idea after one too many nights out which finished with him giving his girlfriend a piggyback home to save her soles.
His invention has taken off, and Rollasole vending machines are now selling out of their stock in clubs across the UK, Ibiza and the U.S.
Demand is so high that a wedding service is launching soon - apparently Danielle Bux and husband-to-be Gary Lineker have got their order in already.
The heels come in a choice of three colours (black, silver and gold) and sizes (S/M/L) - so modern-day Cinderellas won't struggle to find a slipper that fits.
Then again, with your aching feet sorted, who needs Prince Charming anyway?
