To me it is strange that all you British women are still using bleach, as here we have been begged to restrict its use as much as possible on account of the environment.
Probably no cleaning agents are good for us or the environment, but then neither is dirt!
Washing-up liquid is better only used on synthetic surfaces, wooden floors, tiles and so on should be washed in soft soap and rinsed if we are talking tiles that tend to become slippy in clean water.
Never combine bleach (chlorine) with washing-up liquid or toilet cleaners. You can make very good explosives that way!
If you have things in the undersink cupboard that you have not used in over a year, you don't need them, do you? So recycle responsibly and buy one or two cleaning agents instead.
I have soft soap, soda, salts of lemon (used only for getting limscale off the toilet bowls) washing up liquid and scouring paste in my cupboard, and have never needed anything else.