Rosie Huntington-Whiteley only wears four colours in Los Angeles.
The 29-year-old model - who is in a relationship with Jason Statham - is a frequent traveller and finds she always overpacks, so recently "challenged" herself to pare down the contents of her suitcase, and has managed to achieve her plan by being regimented about what she wears.
She explained: "Recently, I've challenged myself - because I come back and forth from LA so frequently - to pack less.
"The last few times I've thought, 'Ok, this is crazy, I pack so much, I don't wear any of it, I need to get more organised.' So I said to myself, 'I'm only going to pack four colours: navy blue, white, grey and black'.
"The same with shoes, the same with accessories, the same with all my clothes."
And Rosie couldn't be happier with her decision as, although it may mean leaving behind some favourite pieces, she is confident everything she chooses goes well with the rest of her travelling wardrobe.
She added to Vogue.co.uk: "It was amazing because basically it meant that everything worked together.
"The white shirt worked with the black jeans; and then the black jeans worked with the grey sweater; and the grey sweater worked with the white pants, so everything was interchangeable and versatile - like taking a uniform as opposed to just lots of different things."
Rosie recently revealed she has regular fashion
"clear outs" of her belongings and is always ruthless with herself.
She said: "I clear out all the time, and get rid of stuff by asking myself, 'Have I worn it? When was the last time I wore it?' "
However, the British beauty does admit to having certain "really special pieces" or garments she has spent a lot of money on that she won't be getting rid of even if she doesn't wear them.
She said: "I mean, there are obviously really special pieces that designers have given me, or things that I've spent a lot of money on, and although I probably know I won't wear it again, I would keep them."
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