Photograph: Alan BetsonIn Dublin, the WhatsApp group Swapsies Inchicore – one of several swap groups in the capital – has about 500 members. They first started making use of swap groups when Fujita became pregnant with their daughter, Emiko, who is now one year old. “When we didn’t know what we needed, swap groups provided a place to go and talk to people and get advice,” says Desmond. The same is true of using the swap groups. “There’s also a monthly clothes swap in Durrus,” she says.