Choose furniture which will last a lifetime and look into which components are made from environmentally-friendly materials.
To minimise the need to replace furniture where practicable choose good quality furniture that can last you a lifetime (or longer).
Buying pre-loved and refurbished furniture items will likely be cheaper and it is possible to find some interesting and unique pieces.
Rather than replace furniture items, see if they can be repaired. Check out Upholstery and Supplies in the Yellow Pages.
Consider donating furniture items to Women's Refuge.
Furniture can be recycled if you are willing to break it down into its separate components: refer fabric, batting/padding, metal, untreated timber.
Take to waste transfer station.