These suggestions are only that, suggestions and come in no particular order.
Suggestion 2 - If you don't already do so, learn to cook from scratch. I am appalled that so many people buy ready prepared vegetables and fruit. I have to admit to occasionally using bought sauces and the odd meal but usually, it is in an emergency or as a treat.
Why would you buy ready prepared fresh vegetables and fruit. Obviously some things such as baby sweetcorn and beans, it is how they come but carrots, cabbage, swede etc! For a start it costs way more and you have lots of packaging to throw away. Also, if you are growing some food yourselves, the peelings are great for the compost heap. It is far cheaper to buy these products whole. Anything leftover could be frozen or used up in soups, stews or salads. Don't know how to cook. Go to your local library, or online, loads of ideas there. I do wish schools would bring back proper cooking lessons, one of the worst things education did was to stop that.
Suggestion 3 - Make your own cleaners, washing machine detergent, soap etc. We really
don't need all the posh, expensive and harsh chemicals in these things.
Planet friendly but often expensive alternatives are available to buy
and many recipes are online to make your own. Check out my tutorial tab for two
different washing machine detergents, costing pennies to use. I now prefer the later version which uses a small amount of bought washing detergent rather than soap. I no longer use the citrus cleaner as it makes me sneeze non-stop for some reason:(
Also, I use large containers of white vinegar instead of fabric conditioner. For the most part, it works very well.