Garage sales are a great place to buy things for cheap - a frugal way of living that is almost a must when it comes to big ticket items!
Here's a great site to help you find local garage sales as well as post the one you're planning!
Garage Sales Tracker
There's links to post or find a local garage sale, coupons, and free items! It's a great site, I hope you get the chance to check it out and use it help you save some money!