Pippa Middleton made it three days in a row with her leather jacket. Today she paired it with casual denim to go shopping along Kings Road in London. Across the Atlantic, Pippa's sister, Kate Middleton, was at the Calgary Stampede also wearing jeans alongside a similarly clad Prince William. The Duke and Duchess of Cambridge are taking their tour to California today, which will be Kate's first visit to the United States. While Kate and William get the royal treatment in North America, her sister is going about her daily routine at home. Pippa Middleton was spotted taking the bus to work, showing that even after skyrocketing to fame she still has her normal working life.