You sure can! Turning a furniture item into something completely different - like taking a bookshelf and turning it into a kitchen cabinet - is upcycling. This can be a fun and lucrative hobby or business, although it does require some skill.
If you have dark wood floors, white or light-coloured furniture will complement these dark tones and serve to lighten and brighten the room. You can add some light-coloured rugs and decor if you want to enhance the effect of this pleasing contrast.
There are many who can benefit from your old furniture. Save yourself a trip to the tip and give your used furniture away at Gumtree.com.au, or to charities such as Vinnies, The Salvos or Uniting Care, who will often pick it up for free.
Rattan furniture gives a simple and elegant touch to any space, but the material can break or unravel over time, and many sellers will then sell it cheaply. It's fairly easy to fix, and there are many online tutorials that can show you how.
Whether you're selling office furniture, bedroom furniture or any other type of furniture, it's a good idea to compare your items with similar items for sale on Gumtree. This will help you to set a fair price that's more likely to get responses.