Surprising as it sounds, something as simple as a lightbulb can lift your spirits. These modern LED lights from Bubble Bulbs (£40) are handmade-to-order, and not only look unique, but bare also better for the planet (LED neon lights consume 70-90 percent less energy than traditional lighting). Plus, with every purchase, the brand donates £1 to plant in a tree with their reforestation partners, One Tree Planted. It's a win-win in our eyes.