Without You David Guetta/Usher
15 January 2015, 06:00
A woman from Harpenden, whose mum died of breast cancer, is going to wear a different charity shop outfit every day for a year to raise money for cancer research.
Caroline Jones has vowed not to buy any new clothes at all this year, except for her knickers!
She's called her campaign Knickers Model's Own and posts a photo of her outfit each day on social media.
Caroline's mum Mary Benson volunteered in the Cancer Research UK shop in the town for 13 years before she died and Caroline hopes her daily photos will not only raise money but will also inspire others to wear more pre-loved items.
Caroline and her mum enjoyed fashion together and she says Mary would love the campaign and be very proud.
Caroline has a Just Giving page where all the money will go to Cancer Research UK. You can see her photos on her Facebook page Knickers Models Own.