Waitrose-y Katie goes down the aisle again - at the supermarket: Duchess proves she has the common touch as she pushes her own trolley



Royal couple have announced an official visit to the U.S.



California trip will be Duchess's first time in America

A week ago she was walking up the aisle in front of a global audience of billions.



Now, a dressed-down Duchess of Cambridge is strolling down aisles of a more mundane kind as she does the weekly shop like any other housewife.



In a loose-fitting green poncho and white V-neck sweatshirt worn with skinny jeans and ballet pumps, Kate pushed a trolley among dozens of shoppers at Waitrose on the island of Anglesey.



Down the aisle again: Kate stops to chat with a supermarket worker as she shops at Waitrose in Anglesey

Onlookers said she had a spring in her step as she filled several carrier bags and loaded them into the boot of her Audi A3.



No doubt her already buoyant mood was lifted further with the news that she and Prince William are to take America by storm with a whirlwind visit to Hollywood this summer. There, no doubt, they will receive the full celebrity treatment.

Unlike yesterday, when Kate smiled at locals as well as the photographer as she ‘skipped’ across the car park to return her empty trolley before driving back to the remote farmhouse that she shares with her new husband.



Doing the weekly shop, Duchess? Kate joins the rest of the supermarket shoppers by grabbing a trolley



For anyone who has remained oblivious to months of build-up to their wedding, the only clues to Kate’s royal status were three police bodyguards, a back-up car and the jewellery on her wedding finger.



Tucked behind her sapphire engagement ring was the plain Welsh gold band that marked her transformation from a commoner into Her Royal Highness on Friday – and will eventually guarantee her a seat on the throne.



Around the wrist of her other hand, she appeared to be wearing an elastic hair band, though yesterday afternoon she let her blow-dried locks hang loose.



No ordinary RAF wife: Appearing to skip while pushing her trolley, down-to-earth Kate looks as though she just might take off on the wheeled device

Kate, 29, is likely to have been preparing a special dinner for her new husband, who returned yesterday morning from a busy 24-hour shift as a search and rescue pilot.



One onlooker said: ‘It looked like she was stocking up on the basics, but she also bought a few special items, so perhaps she was preparing their first romantic meal as a married couple.



‘She loaded all the shopping into her car on her own, then skipped as she ran the trolley back to the park. She looked very happy and was smiling at people.



‘Most people didn’t even spot who it was, despite her being probably the most famous person in the world at the moment.’ It is the first time Kate has been out and about in public since she and William departed for a weekend break on Saturday, the day after marrying at Westminster Abbey.



Happy shopper: The new Duchess of Cambridge looks relaxed at the supermarket with her protection officer

Don't forget the keys: Kate hands over the car keys to her protection officer, and then it was in to the supermarket to bag some bargains

It was only after the couple flew off in the Queen’s helicopter that St James’s Palace revealed their surprise decision to forego an immediate honeymoon. They spent the bank holiday weekend at a secret location in the UK and are expected to take an extended break at a later date.



It was announced yesterday that they will stop off in Los Angeles during a three-day official stay in California in July following their inaugural foreign tour to Canada.



Palace officials decided to extend their original nine-day tour as the reaction in the U.S. to the couple’s engagement and wedding last week has been so phenomenal.



What a difference a week makes: Kate, the Duchess of Cambridge, on her wedding day last Friday

Their faces are on the covers of magazines coast to coast and have led news bulletins on all the major channels. The prince’s late mother, Princess Diana, was immensely popular in the U.S. and there is little doubt that part of his growing public profile there is down to her.



But with a glamorous, young new bride on his arm, the reaction is expected to exceed anything seen before.



The exact details of the trip have yet to be confirmed but William and Kate will arrive in California on July 8 and leave on July 10. During their proposed visit to the sunshine state, they could be welcomed by former governor Arnold Schwarzenegger.



Cool customer: Kate, the Duchess of Cambridge, mingled with shoppers at a branch of Waitrose in Anglesey

The prince has never visited the U.S. in an official capacity before but did holiday with his university friend – and rumoured love interest – Anna Sloan, a Texan heiress, in 2004. It will be Kate’s first-ever visit to the country.

David and Victoria Beckham, who were at Westminster Abbey when the couple said their vows, are expected to be involved in their California visit.



It also emerged yesterday that William’s first day back at work – and away from his new wife – was a busy one. The 28-year-old, who has chosen to keep the working name Flight Lieutenant William Wales, arrived at his RAF Valley base on Wednesday morning and was soon involved in two emergencies.



In the first, his Sea King chopper was sent to rescue a 70-year-old man who suffered a heart attack while on Lliwedd, a mountain in Snowdonia National Park, and was airlifted to hospital on Wednesday afternoon.



Soon after, the prince and his three fellow crew members collected four off-duty policemen who were stuck on Snowdon because one of them suffered vertigo as they made their way down from the peak.