Queen, Camilla and Kate's royal outing

Queen Elizabeth II, center, Camilla, Duchess of Cornwall, right, and Kate, Duchess of Cambridge, arrive at a Fortnum & Mason department store in central London, March, 1, 2012. The royals met military personnel and staff, viewed the store's Diamond Jubilee product ranges and unveiled a plaque for the regeneration of Piccadilly.

Queen Elizabeth II, Camilla, Duchess of Cornwall and Kate, Duchess of Cambridge arrive at a Fortnum & Mason department store in central London, March, 1, 2012.

Kate, Duchess of Cambridge, visits the Fortnum & Mason department store on March 1, 2012, in London. Together with Camilla, Duchess of Cornwall and Catherine, Duchess of Cambridge, Queen Elizabeth II met military personnel and staff, viewed the store's Diamond Jubilee product ranges and unveiled a plaque for the regeneration of Piccadilly.

Queen Elizabeth II, left, Camilla, Duchess of Cornwall, and Kate, Duchess of Cambridge, right, looking at a Jubilee cake during an official visit to the Fortnum & Mason department store in central London, March 1, 2012.

Queen Elizabeth II, left, Camilla, Duchess of Cornwall, and Kate, Duchess of Cambridge, right, look at their picnic hampers after being presented with gifts in the Fortnum & Mason store in central London, March 1, 2012.

Queen Elizabeth II, left, Camilla, Duchess of Cornwall and Kate, Duchess of Cambridge, right, look at their picnic hampers after being presented with gifts in the Fortnum & Mason store in central London, March 1, 2012.

Kate, Duchess of Cambridge, visits the Fortnum & Mason store on March 1, 2012, in London. Together with Camilla, Duchess of Cornwall, and the Duchess of Cambridge, Queen Elizabeth II met military personnel and staff, viewed the store's Diamond Jubilee product ranges and unveiled a plaque for the restoration of Piccadilly.

Camilla, Duchess of Cornwall, looks at the patisserie display while visiting Fortnum & Mason store on March 1, 2012 in London.

Kate, Duchess of Cambridge, visits Fortnum & Mason on March 1, 2012, in London.

Kate, Duchess of Cambridge, center, and Camilla, Duchess of Cornwall chat with staff during their visit to the Fortnum & Mason store on March 1, 2012, in London.

Camilla, Duchess of Cornwall, visits the Fortnum & Mason department store with Queen Elizabeth II and Kate, Duchess of Cambridge, on March 1, 2012, in London.

Queen Elizabeth II views tins of tea and biscuits on display for the Gifts For Troops scheme and speaks to members of the British Armed Forces during her visit to Fortnum & Mason on March 1, 2012, in London.

Camilla, Duchess of Cornwall and Kate, Duchess Of Cambridge visit the Fortnum & Mason department store on March 1, 2012 in London.

Kate, Duchess of Cambridge, speaks to a member of the British armed forces at a military charity food display in the Fortnum & Mason store in central London, Thursday, March 1, 2012. Together with Queen Elizabeth II and Camilla, Duchess of Cornwall, they met store staff and unveiled a plaque for the regeneration of Piccadilly.

Queen Elizabeth II is shown jars of honey by beekeeper Steve Benbow while visiting the Fortnum & Mason store on March 1, 2012, in London. Together with the Camilla, Duchess of Cornwall, and Kate, Duchess of Cambridge, the monarch met military personnel and staff, viewed the store's Diamond Jubilee product ranges and unveiled a plaque for the regeneration of Piccadilly.

Queen Elizabeth II walks past a cake display during an official visit with Camilla, Duchess of Cornwall, and Kate, Duchess of Cambridge, to the Fortnum & Mason department store in central London on March 1, 2012.

Queen Elizabeth II unveils a plaque to officially open the Fortnum & Mason Diamond Jubilee Tea Salon while visiting the Fortnum & Mason department store on March 1, 2012, in London.

Britain's Queen Elizabeth II, left, Camilla, Duchess of Cornwall, and Kate, Duchess of Cambridge leave Fortnum & Mason after an official visit together in central London on March 1, 2012. The queen unveiled a plaque on the pavement to commemorate the refurbishment of Piccadily upon departure after the trio toured the department store.

Queen Elizabeth II, Camilla, Duchess of Cornwall, and Kate, Duchess of Cambridge, stand outside the Fortnum & Mason department store for a ceremony to unveil a plaque to commemorate the regeneration of Piccadilly in central London, March, 1, 2012.

Kate, Duchess of Cambridge, left, and Camilla, Duchess of Cornwall, are seen ahead of a plaque unveiling by Queen Elizabeth II, as London Mayor Boris Johnson, right, looks on outside of the Fortnum & Mason store in central London, March 1, 2012.

Queen Elizabeth II, right, Camilla, Duchess of Cornwall, center, and Kate, Duchess of Cambridge, stand outside the Fortnum & Mason department store for a ceremony to unveil a plaque to commemorate the regeneration of Piccadilly in central London, March, 1, 2012.

Kate, Duchess Of Cambridge, Queen Elizabeth II, and Camilla, Duchess of Cornwall, depart the Fortnum & Mason Store on March 1, 2012 in London.

Queen Elizabeth II, carrying daffodils given to her by a wellwisher on St. David's Day, waves as she departs the Fortnum & Mason store on March 1, 2012, in London.