If you’re going to make a carbon footprint, it might as well be in Prada lace-ups. That’s the thinking behind Arena and premium moisturiser Nivea DNAge’s search for the most luxurious city on Earth. Each week for the next eight weeks, we’ll be revealing our shortlist for the international destinations we consider to be in the premium league. Vote for your favourite and you could win a weekend in our first highlighted city, Dubai.

There are two main reasons why I like Fraser Nelson. Firstly, the man can really rock a polo shirt. Secondly, he’s a very good writer. This month it’s the latter that interests me. His piece in the June Arena about the exercise epidemic down Westminster really got me thinking. Not about the likes of Jack Straw getting hot and sweaty in some airless sardine can below the House of Commons, because that’s almost too disgusting for words. But about the similar occurrence within my own social strastosphere. Which actually, isn’t much more pleasant.

It is our belief that there are two types of people in this world: Mac users and people who wish they were Mac users but won’t admit it. Often the sad, bitter characters in the latter category attempt to bring you down by complaining of not being able to open things you’ve sent them. Well, no more! A new version of Microsoft Office for Mac offers greater file fidelity and compatibility. Giddy with possibility, we’re giving away five copies of the software, plus an Apple laptop for one lucky winner/former Mac wannabe.

There’s only one week to go before Grand Theft Auto IV drops, and Chanel maestro Karl Lagerfeld is making a special guest appearance in it. Yes, you heard right. Simon Helyar previews the action.

Following news that O2 and the Carphone Warehouse have reduced the price of the iPhone to £169, Tony Teasdale offers some words of wisdom on how to use one. And how not to.

I found out last night that my ex-girlfriend snogged some bloke at the weekend and I’m pissed off about it – even though I was the one who broke up with her and I did it four months ago.