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.
Share tools and gadgets that people use infrequently rather than each of your neighbours buying their own individual items. Plan ahead and co-ordinate new purchases with your neighbours.
If you're looking for a hotel go to TripAdvisor and select 'GreenLeaders' from the 'More' menu option above the search box.
Filter water for all uses, not just drinking. Install a water filter instead of filling up those jugs.
Instead of buying paper napkins for each celebration buy cloth napkins that you can use again, or make your own.
Use charcoal deodorisers around the home to absorb rather than mask odours and toxins.
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.