I think I did most of the 9 ways but not the no. 10 way. The last way was to ask us buy recycled products. Those recycled products dont come cheap either. I saw them at a department store and they cost a lot.
There is this cute model city made entirely of recycled products such as milk carton, old carpets, mats, table tennis ball, etc
Even the roof of the buildings are made of eggs cartons.
It looked so lovely and cute.