True, there probably wouldn't be too many solo juice runs in Cressida Bonas' future if she ended up marrying into the royal family.
Cressy looked casual but extremely pulled together in tight jeans, white high-top sneakers and a loose sweater over a white blouse, accessorized with a pendant necklace and hoop earrings. Her long hair was down and flowing, and she was sporting trendy navy blue nail polish.
So, no matter how Cressida may be feeling right now, she's looking good.
Just a couple months ago, she and Harry were the subject of rampant engagement rumors, and the 25-year-old socialite had even attended her first official event with him in March, the inaugural We Day U.K. benefiting Free the Children, an international charity that seeks to fight poverty and improve educational opportunities.
A source tells E! News that they attended a friend's party near Fulham about five weeks ago and left together, Harry driving and Cressida in the passenger's seat.
Meanwhile, an eyewitness also told us that, last week, Harry hit upscale market Marks and Spencer solo (minus his security detail, that is) to pick up milk.
The 29-year-old royal was busy today on official business, having traveled to Wiltshire to help launch the Invictus Games selection process and meet with military veterans.
—Additional reporting by Melanie Bromley and Lindsey Caldwell