A simple way to do this is by layering. I, for one, live up to the British stereotype of always complaining about the weather, and particularly in autumn, it can be rather temperamental. Bring light jackets and cardigans that you can simply tie around your bag if you get a bit hot and bothered. The same goes with scarves - wrap them around your shoulders, tie them as a bandana or just wear them normally! It's amazing how one piece can be used in so many ways to add a bit of extra warmth.
As the days get darker, you may feel as if your colour palette has to shift with this trend. There’s a stigma that autumn clothing is only muted, earthy tones. However, this isn't true! While the bright colours and bold patterns often found in fashion from the hotter months can be daunting, don’t be afraid to experiment. Something I find helps is choosing 2-3 main colours for my outfit and accessorizing with any pops of dyes from the patterns of my clothes.
Observe celebrities who have a similar colouring to you to see what they wear...
I often wear my floral summer dresses and skirts as tops, pairing them with jeans or another skirt. Denim is a great neutral and goes with any colour so then you can accessorize with colours that go with the other pattern/tones in your outfit. I’d recommend studying which season suits you best - House of Colour have a great wheel that I follow all year round to know which tones bring out my natural features. Observe celebrities who have similar colouring to you to see what they wear - hair, skin, eyes - as they have stylists whose job it is to know what looks good on them.
These meaningful purchases that you can use throughout the year are super cost-efficient, but also give you a personal sense of style rather than following fast fashion trends. If you like this advice but still want to develop a capsule wardrobe, I'd recommend using websites like Vinted, Ebay and Depop to find unique pieces without contributing to global warming. Even better, go to charity shops to donate to a better cause, while winning big with great quality fabrics and vintage styles - you may have to search, but trust me, there are some real gems. Remember, sustainability is sexy.