In the spare bedroom, sitting alongside the bed settee, is my 5L storage container area.
For washing up, hand washing and making my own laundry liquid, we use Ecover. It works out slightly cheaper to buy them in bulk and uses less plastic. Another thing we buy in these 5l containers is white vinegar. This is used for household cleaning, preserving, fabric conditioner and if necessary, hair conditioner (I normally use apple cider vinegar):
There is another washing up liquid around the corner. I wish we had the kind of place nearby where we could get these and other items refilled, but alas, we don't.