SMART STRIPES

The bigger and brighter stripes are, the more impactful. Uniform blue-and-white styles often have a nautical feel and are a good choice for a study room or home office, as both shades have been shown to increase levels of productivity. More vibrant stripes, on the other hand, have a playful feel and work well on accessories in rooms painted a solid colour. For extra impact, consider layering horizontal stripes with vertical ones.

Rander stool, £175, Oka Toppu vase, £57, Oyoy Living Design Gemma cushion, £100, Christina Lundsteen at Liberty London LEFT: Fjordbyen mural in Blue, £31 a sq m, Sandberg Wallpaper. For similar furniture and accessories, try Ikea

Stripe throw, £50, John Lewis & Partners

Mitzi armchair, £449, Atkin And Thyme

Wooden Stripe table lamp, £100, A by Amara