We had some really great threads last year, with the following four nominated for the Thread of the Year award in this January's Environment Site Awards ceremony.
Re-use empty plastic containers from takeaways as useful storage containers forever and a day. It's more hassle in many parts of Britain to transport them somewhere for recycling, so re-use them.
They stack neatly in or on a cupboard when not in use in any case!
If you cut off the top of large mineral bottles the make good cloches or protection from slugs and snails at night.
Punch holes in bottoms of plasic cups ,use has plant plots
Connect our downspout to capture rainwater in a cistern or barrel, then use the water for lawns and gardens, washing the car, and other outdoor projects.