Not just antique stores.
Part of me will forever mourn the loss of the Lifeline Super Store at Wooloongabba. It was an amazing store, full of all kinds of useful (and cheap!) stuff that i still use almost every day: i have a drawer of tupperware lidded bowls and boxes that we use to store leftovers and baked goods, that i would never have been able to afford to buy new, and a lot of my jeans have come from there over the years too, some still with the tag attached!
If you can find such a store, you’re bound to find a bargain! (and/or just have a lot of fun ‘hunting’) :)