Bio D is probably the most ethical household product company in the UK...
We have used them for many years & it pleases us very much that they haven't sold out & struck up deals with supermarkets.
Their products are all detergent & nasties free, so can be used by folks with allergies. Big health stores will do top ups of the more popular products, so you can get money knocked off & you can buy some of their stuff in 5 litre bottles, so you can save even more.
It's worth researching the products you use, some of them are very harmful...
To get you started, here's a chart on Ethical Consumer for washing up liquid, read about the brand you normally use & think about making changes.
Kay & Sime