You know the feeling when you post your old baby stuff on your local Buy Swap Sell Facebook page ready to make a few extra dollars, but your Bonds wondersuits and the shoes your bub never actually wore just sit there being ignored?
Well, Serena Williams sure doesn't.
You see, fans of the ever so stylish wardrobe of her daughter Olympia were given quite the treat on Thursday when the tennis champion put some of her baby's cutest outfits up for sale, with the proceeds going to charity.
And, unsurprisingly, every single item was snapped up in a flash.
If you follow the 18-month-old (and her doll) on social media then you'll probably recognise some of the oh-so-adorable outfits in Williams' Poshmark closet, an app for buying and selling fashion.
Along with a pink Burberry dress, some Stella McCartney Kids Denim Overalls (which I wouldn't mind in my size, thanks) and a Muhammad Ali I'm Free Baby Onesie, there was quite the collection of shoes - Nike Baby Lil' Posite One Bootie, Converse baby chucks, and Gucci Toddler Leather Low-Top Sneakers, to name but a few.
The sale also included these fabulous t-shirts:
"I will be donating all of my proceeds to the Yetunde Price Resource Center, my non-profit organization which offers trauma-informed programs that promote individual and community-wide healing and resiliency," Williams writes in her Poshmark profile. "YPRC works to ensure that victims of direct or indirect senseless violence have complete access to existing resources, and that where there is a dearth in services, new resources are created."
The organisation honours the life and memory of Williams' oldest sister who was murdered in 2003.
It's not the first time the mother-of-one has opened the doors of her closet to raise money for the centre. Earlier this year, after it was announced that she had joined the board at Poshmark, Williams sold some of her own clothing, including a Victoria Beckham dress, a Stella McCartney Wool Blazer and an H&M Halter Dress.
"I love working with a company that gives anyone an opportunity to become an entrepreneur," she said at the time. "I'm also excited for the community to shop my Posh Closet for Charity, which will benefit a cause that's very important to me."
So while you might have missed out this time, if you're coveting some of Olympia's outfits for your own little one, keep an eye on William's Posh Closet - you might just get your hands on some of those fancy kicks in the future.
Meanwhile, I'll take the little black tutu, please.