Not a lot!
I do try to buy lotsof Fairtrade chocolate.
However for other items so many brand names are now part of other conglomerates that it is hard to know , when in the supermarket aisle, who owns what!
At one point in the past I thought my kids would get scurvy as I was boycotting so much stuff it was hard to find fruit i felt was ethically sound for me to buy.. but now it is even trickier.
Lever Bros own masses, Veolia run all sorts of services....and I am not sure their credentials stand up to much scrutiny..and there will be other companies too
However I can do 'no Kitkats'!