Bee Brick (£28)
Not a funky piece of cheese, this holey block both upgrades your garden and does a solid for solitary bees. Constructed in Cornwall almost entirely with waste material from the China Clay industry, build one into a wall or stick it by a bench – either way, it'll give the little buzzers a safe space in spring and summer.
For the uninitiated, solitary bees are the non-aggressive kind, which means they're safe for little-ones to watch with wonder, before dressing up in sympathy and buzzing around the garden.
Manduka Eko Lite Yoga Mat (€65)
Deep in Downward-Facing Dog, you're on the verge of finding your inner peace when – om! – it hits you like an organic coconut to the noggin: how can you meditate when you're stretching on an dirty piece of plastic?
Replace your ageing roll-up with something altogether more at one with the earth: Manduka's mats are made from biodegradable natural rubber, harvested in a tree-friendly way as part of a zero-waste process. Namaste to that.
Narwood Chestnut Wood Watch (£70)
Want a watch that works for the world? Narwood's attractive tickers don't just tell you the time – they tell you it's time for change: for every one that's bought, they'll plant a tree in an area affected by deforestation. Buy an armful and they'll create a copse. Buy them for your friends and family and you'll be halfway to a forest.
Alternatively, take some saplings and a shovel to the garden. Less style, more sweat, same result.
Reusable Cocktail Straws (£20)
Waking up with a crushing sense of guilt on New Year's Day is nothing new – but it's your plastic straw habit that should have you troubled, not what you did after that fifth Caipiroska.
Keep your cocktails ocean-friendly with these copper drinking straws, which have the double benefit of being reusable and looking far superior to your average suction tube.
Nest Learning Thermostat (£219)
Want true eco-heating? Put on your biggest jumper, wack a woolly hat on your noggin and huddle in the corner with your cat. Zero energy consumption, maximum shivering.
For a more reasonable way to cut costs this winter, install Nest's nifty thermostat in your home (or have a pro do it for £70). The clever control connects to your boiler before learning your heating habits, setting schedules and turning things down when you leave the house – all for the cause of slashing energy consumption.
You can even control it while you're out and about, in case you think Mr Tibbles is feeling a little chilly.