The Duchess of Cambridge was seen in Chelsea, accompanied by a protection officer, where she was picking up homewares no doubt to furnish her new home at Kensington Palace.
Kate swept her long brunette hair into a ponytail and was dressed casually in navy skinny jeans and wore a white Jack Wills shirt with small black polka dots under a white cardigan.
Prince William's wife was also wearing grey plimsolls, carrying a Mulberry handbag and accessorised her outfit with a long gold necklace and gold earrings.
Kate's shopping trip took place just hours before she stepped out a charity dinner for Action on Addiction at Kensington Palace.
The new mum wowed in an elegant floor length gown by one of her favourite designers, Jenny Packham.
A day after giving the public their second glimpse of her three-month-old son at his christening, Kate turned heads as the guest of honour at the 100 Women Hedge Funds Gala, which raised £600,000 for the charity.