give each other up either,' he explains. 'We decided the best way to keep it together was to get married. You have to have a grown-up, pragmatic approach to relationships to make this work. I wouldn't recommend it to anyone who doesn't.' The couple's complicated travel schedule takes in trade fairs and art sales around the world, while always keeping to the three-week rule. 'We would love to be together more but I can't see it happening while we continue in our current careers,' he says. Thomas is 54, with a child from a previous marriage; he and Carol have no desire to have children together. 'It makes a huge difference which life-stage you are at,' says Paula Hall. 'If you're young - or indeed older - and not thinking about babies, then there's no reason not to give it a go. But anyone with thoughts of settling down and having a family is not going to want to stay in a relationship like this for long.' Even if both halves decide to stop acquiring air miles and settle down together, agreeing on which city to live in can be contentious. Miriam Longchamp and Chris Rowley had a 'long-running battle about it'. Eventually, she says, 'I thought to myself, Chris has far more issues with the US than I do with London, and, you know what, I could live here, I'll do it.' Miriam says she has no regrets. Nonetheless, she has had to make sacrifices. A lawyer with Morgan