May Burrough works in central London. But her flat is too small to have lots of people to stay, so last October she invited some close friends to a five-bedroomed villa with a pool on the Costa Brava, Spain.

She estimates it would normally have cost around £3,500 to rent a house like that. But she used a home-swapping site and only paid €100 (£85) – for the cleaning fee – plus around £250 on transport.

Although she saved money on the villa, May and her friends did splash out on food and drink, such as oysters and wine from the region.

“We really had a lush time at the house because we were like, ‘well, we’re not paying for the accommodation!'”

Because finding someone to do a straight swap with can often be tricky, the Home Exchange site she uses allows her to earn credits by letting people stay in her one-bedroom flat, and then spend them elsewhere.

“It does take a bit of effort. I put valuables away, you have to change the bedsheets, cleaning every time. But it is fully worth it,” says May.

She says the site is a bit clunky to use, but she loves what it allows her to do, for an annual fee of around £170.

Recently she booked a one-night stay in Vienne, France so she could go to a concert.

“A hotel was going to be mega-expensive. So I booked a room in someone’s home and left in the morning.”