If possible replace disposable products with reusable ones (eg. food storage, coffee filters, straws, etc.).
Check your local library to find out all the resources it provides. Libraries are a good place to read magazines and newspapers as well as borrowing books (and DVDs).
Sprinkle dry tea leaves to deodorise problem areas such as your cat litter tray.
Choose rechargeable batteries and a battery charger to cut down on disposables. Eventually recyclable batteries reach the end of their life too but they can be recycled – local recycling policies vary so check with your recycling facility.
Filter water for all uses, not just drinking. Install a water filter instead of filling up those jugs.
Rub beeswax over pans and baking sheets rather than use butter or oil each time. Over time the pan develops a permanent coating.
Switch to LED lights. They cost less to run and last longer than any other bulb.
If you only need a tool or piece of equipment infrequently then instead of buying one, save resources by asking a friend or neighbour if you can borrow one. Or check online for a lending club, such as Streetbank.
Use charcoal deodorisers around the home to absorb rather than mask odours and toxins.