Have you ever looked at someone and wished you had their life? You know, whoever George Clooney’s currently going out with. Or Marian Keyes, who is not only a fantastically talented author and all-round goddess, but also gets to work from her bed. Well, if you have, you’re not the only one - many, many authors have also wondered about it. Here are three!

Another Man's Life by Greg Williams features twin men with very different lives (one is a single, hot-shot rich businessman, the other a stay-at-home-dad ever since he was made unemployed), who decide to swap lives and to find out how the other half lives, if the grass is greener on the other side... and all that jazz.

So they hatch a plan to pretend to be each other for two weeks, during which Tom (the stay-at-home-dad)'s wife will be away and Sean (the single, hot-shot rich businessman) will be off work. Or that's the plan, anyway. What could possibly go wrong?

In Mary Castillo’s Switchcraft, Nely and Aggie - who have been friends for years, but have grown apart since the birth of Nely’s baby - go on a spa break to try and repair their friendship. During their session with a guru, they end up “switched” into each others bodies, where, it turns out, they have to stay for 28 days. There is nothing they can do but try to muddle through living each other’s lives...

Life Swap by Jane Green features Vicky, a single girl in London who dreams of nothing but getting married. Across the pond, Amber apparently has it all – the house, the husband, the kids, the American dream. But neither is happy, both perhaps wanting what the other has. The two strangers swap lives for a month, as a feature for Vicky’s magazine ‘Poise!’, to see if the grass is greener.