Avoid creating waste. When ordering food avoid plastic utensils or straws by asking in advance.
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.
Sprinkle dry tea leaves to deodorise problem areas such as your cat litter tray.
Rub beeswax over pans and baking sheets rather than use butter or oil each time. Over time the pan develops a permanent coating.
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 dried tea leaves as a deodoriser. Scatter them over the carpet, leave for ten minutes then vacuum up. Place in the fridge to absorb odours (like baking soda).
If you're looking for a hotel go to TripAdvisor and select 'GreenLeaders' from the 'More' menu option above the search box.