The TOWIE star tweeted the above picture of herself ready to head out to work today (July 29), and she looks like she means business in a smart black dress with her hair pulled back in a high ponytail.
Baby Nelly was nowhere in sight, but she's apparently joining mum at the office, as Billie captioned the photo:
"Me and my little Nelly off to do some buying at the minniesboutique office..."
Minnie's Boutique is the Essex-based fashion store set up by Billie and her sister Sam Faiers in September 2011.
The sisters have worked hard to make it a success and Billie is so dedicated that she took just one day off from tweeting promotions for the boutique when Nelly was born on July 10.
After returning home from hospital on July 11, Billie quickly resumed tweeting links to the boutique's website and even set up a limited edition 30 per cent off offer to 'celebrate the arrival of my beautiful little princess'.
Billie is clearly enjoying making the most of quality time spent with her new daughter.
As well as taking her into the office, they've also already enjoyed their first mother-daughter shopping trip to Bluewater Shopping Centre in Kent, and last week she shared this gorgeous photo of Nelly asleep on her chest.
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