Sam Cam's shoes

Samantha Cameron always looks stylish, even when she’s watching the Highland Games at Braemar. She has glossy hair that’s never out of place, a high-flying career at Smythson and has transformed Number Ten into a house that looks straight out of The World of Interiors.

Now, if that wasn’t enough, she’s proved she really is Superwoman. Striding along the pavement on a mile-long walk from Downing Street in aid of Save the Children yesterday, she sported a pair of Topshop stilettos. Stilettos. With four and a half inch heels. On a walk. My admiration shows no bounds. In her shoes (no pun intended), I would have ditched the heels and plucked a pair of Converse or ballet pumps out of my bag.

I’m a complete failure in the high heel stakes. After a summer of wearing espadrilles and pumps I tried wearing my favourite (and usually blissfully comfortable) platforms. When I got out of the car I had to walk at such a snail’s pace that my husband got fed up with waiting and strode in without me. At the end of the evening I gave up the battle and walked back to the car park in bare feet. I’m worried I’ll never wear heels again. And at my height, that’s not a good look.

PS: Back in May, David Cameron asked Mary Queen of Shops, alias the wonderful Mary Portas, to carry out an independent review of the nation’s high streets – with a view to bringing back “the bustle” to our town centres.

If anyone can do it, Mary can, but I wish she’d persuade all shops to match the amazing customer service offered by John Lewis. Working from home, I look forward to a skinny latte every morning. So I was thrilled to discover a new Dualit gadget called a Lattecino to heat and froth the skimmed milk. It’s a great idea, except I’m now on my fifth. The first, bought from John Lewis in High Wycombe, stopped working after a few weeks. I took it back to John Lewis and they changed it without a murmur. And again. And again. And again. Four times in fact. How impressive is that?

I didn’t get such exemplary treatment at River Island today. The strap of my son’s bag snapped for no reason so I returned it to River Island, along with the receipt. The assistant took it to the manager’s office (he didn’t deign to talk to me) and told me there was nothing they could do. “It’s obviously had some wear and tear,” she said. Well yes. It’s a teenage boy’s school bag. Surely that doesn’t mean the strap should break without reason?