These are all brands I personally buy from and, to the best of my knowledge and research, whose ethos I support and whose impact on the planet is as low as possible. I don’t make any money from this blog, but if you appreciate my writing and were considering buying from one of these companies anyway please consider going via my referral link.
Also I’m afraid I can’t guarantee these links work – some may have been temporary offers that expire after a few months, and the terms of the offer might change. But if you were going to buy these items anyway and appreciate my writing, consider buying through one of these links.
Groceries

Yoyo Grocery – wholefood deliveries in returnable, reusable packaging
If you place an order worth £30 or more for the first time through this link we both get a £10 discount.

Pact coffee – sustainably grown single estate coffee subscription from fairly paid farmers
This link gets both me and the person who takes out a subscription through it a £5 off voucher:

Overherd: gluten free oat milk powder
Great for camping or leaving at work, just add water instead of carrying around the weight of liquid milk. This link should get you 15% off your first order and me a £5 discount voucher.
https://overherd.uk/products/oat-milk-powder?ad_id=7AXPR1W0T9

Yokuu probiotic cleaning products
Laundry sheets and cleaning sprays made with beneficial bacteria from the Ardennes forests. This link gets you 30% off, and me a voucher.

Make Waves
Refillable deodorant and antiperspirant. This link gets you 25% off your first purchase and me a £6 voucher.

Naked Paper
Unbleached, minimally packaged toilet paper and kitchen roll made in a solar powered factory. This link gets you £5 off your first order, and me £5 credit.

Wessex distillery – very nice gin
No justification in terms of building a better world here I’m afraid, just very good gin. If you also like gin and buy some through this link we both get £10 off.
Electricity from renewables

Ecotricity – renewable energy supplier that invests its profits into building new renewable generation
By quoting the referral code RAF-U2C6A when you sign up we both get a £25 John Lewis voucher. You can sign up here.
Electronics and digital services

Fairphone – modular mobile phone free of combat minerals and sweatshop labour
Buying through this link gets you a €20 discount when buying a Fairphone 3+ and Fairphone 4. Remember though, the most sustainable phone is the one you already own.

Tutamail – encrypted email
Secure email and calendars based on open source software and stored on German servers powered by 100% renewable energy. If you sign up using this link you get a free month on your yearly membership and we get 25% of what you pay in credit.
Clothing

Rapanui – renewable energy powered clothing that can be returned and fully recycled at the end of its life
This link gets both me and the person who buys something through it 20% off orders over £50

Wuka – sustainable period pants campaigning against period poverty
This link gets both me and the person who buys something through it a £5 off voucher: