There had to be methods of recycling more fun than selling cans and bottles to the bote-dyaryo man. It's quite expensive to buy new materials, so we can look for pieces that we can recycle in the storage areas, we can design objects either for entertainment for profit. We don't need to buy. All we need are lots of junks and odds and ends.
You can paint a varnished chair any color you like. Have other pieces reupholstered. An old jar can converted into a lamp; you can even change the shade from round to square. You can clean some old metal or brass piece, and use it for a table setting or for accent.
You can collect wine bottles in different colors. These can be very good accessories for your room or office. Just clean them and put the on a windowsill where the sun hits them. I think that would be a good start, and it is inexpensive.
Work with a form. A cube is flexible and you can do more things with it. It can expand into a box or a slab. Be aware of the things you normally discard. For instance, we always have newspapers. You can stack and then glue them together. It becomes a square or rectilinear base, and you can just put a glass top. You can also do this with lose tiles. If you have cans of coke, go ahead and put them together. If you're inventive enough, you can use tetra packs to make a divider or something for your window. This way, you don't need new stuff, you create your own. You already have so much junk but still accumulated anyway. Rather than just throwing them away. On the other hand, continue buying furniture, live what you have. By establishing order with them, you will end up with something that will serve you.
