A quick start. Every action here is free or cheap, takes minutes, and is explained in full on the page named beside it.
1. Start a fat jar. Keep an old jar or tub by the cooker, pour cooled fat and oil into it, and bin it when full. Nothing greasy down the sink. (In the kitchen)
2. Fit a sink strainer to catch food scraps before they go down the plughole. (In the kitchen)
3. Put a bin in the bathroom and agree the house rule: only pee, poo and paper get flushed. Wipes and period products go in the bin, every time. (In the bathroom)
4. Round up old medicines from the back of the cabinet and take them to any pharmacy. Never flush them or pour them away3031. (Medicines & chemicals)
5. Do a five-minute leak check. Listen for a hissing loo cistern; a leaky loo can waste between 200 and 400 litres a day40. (Your water use)
6. Order a water butt for your downpipe, so your roof water helps the garden instead of rushing to the drain. (Your water use and your drive & garden)
7. Move the car wash onto grass or gravel, or use a commercial car wash, so dirty, soapy water soaks away instead of running to a surface drain17. (Your drive & garden)
8. Check the date of your dog's last flea treatment. After a spot-on treatment, no swimming for at least four days, and ask your vet whether routine treatment is needed at all55. (Dogs & the river)
9. Bag it and bin it. Dog poo, any public or household bin. (Dogs & the river)
10. Put the river in your pocket. Download the Safer Seas & Rivers Service app for pollution alerts69, and save the Environment Agency's 24-hour incident hotline: 0800 80 70 6072. (Your community & the Dart)