Replace at least part of your lawn with a meadow as a wildlife habitat, and cut down on the need for watering.
Rub beeswax over pans and baking sheets rather than use butter or oil each time. Over time the pan develops a permanent coating.
Filter water for all uses, not just drinking. Install a water filter instead of filling up those jugs.
Sprinkle dry tea leaves to deodorise problem areas such as your cat litter tray.
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.
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).
If you're looking for a hotel go to TripAdvisor and select 'GreenLeaders' from the 'More' menu option above the search box.
Use beeswax candles instead of ordinary paraffin candles. They burn cleaner, brighter and last longer. They also emit negative ions which improve air quality.
Save and re-use the little sundries that come along with packaging, such as rubber bands, twist ties and boxes.
If possible replace disposable products with reusable ones (eg. food storage, coffee filters, straws, etc.).
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.