Dilute to save money. A lot of things can be diluted with no real difference in taste or performance. Why not try it and save some money at the same time.
I dilute liquid soap, washing up liquid and other cleaning products.
I also dilute soya milk and orange juice a little. (For adults only, need the extra calcium for growing children)
Some things can be diluted up to 50%. Try it with a little and increase it until you see a diffence and then go back one step, to your maximum dilution
This way you use less, which is better for the environment, less packaging in the long run and you save on your shopping bills.
Also for things that can't be diluted, try using half the recommended amount. e.g. washing powder, shampoo etc.
Try it and see.