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.
In the garden, use coffee grounds as a mulch for acid-loving plants or around the base of plants to deter ants and slugs.
Sprinkle dry tea leaves to deodorise problem areas such as your cat litter tray.
Instead of buying paper napkins for each celebration buy cloth napkins that you can use again, or make your own.
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.