If you have things that you no longer want but that are still in useable condition, they can be given away to people who will use them, or to charity shops who will make money by selling them and this money will then be used to help people in need.
Vinnies, Dawson Parade, Grovely. (2nd-hand clothing -women's, men's, children's; books, bric-a-brac, pictures, toys, shoes, handbags and accessories. Sorry - no electrical goods.)
Lifeline, Great Western Super Centre, Keperra
Freecycle North Brisbane is a website where you can offer items to give away free. People who want them make contact and arrange to come and collect them from you.
Of course, these are also fun places to find a treasure.