In the kitchen I use baking soda to clean the oven and anything that gets burnt onto the hob. I wipe down surfaces just with a damp cloth and I use the bar soap for dish washing (or powder if I am using the dishwasher) and washing the floor.
In the bathroom I use apple scrap vinegar for cleaning the shower glass and mirror and alternate baking soda and vinegar for everything else, occasionally using bar soap. I got the citric acid to try and shift an unsightly limescale stain that is hard to reach.
For the rest of the house it is mainly hoovering and dusting and no extra bottles of chemicals are needed.
Laundry as mentioned above is done with bulk powder, but in this case I think the eco brand works out more expensive...I am happy enough to let it balance out because all in all it is working out much cheaper for me overall.