My daughter attends South Gwinnett High School. Her math teacher wanted her to get a Texas Instruments graphing calculator. Model TI-83 or TI-84 to be exact.
These models sell for $90 to $120 at retail. I was able to get a used one for $50, including shipping. I ordered it from eBay.
You can save a lot of money by checking eBay, CraigsList, or even by posting what you're looking for on Facebook or Twitter. You'd be surprised how often other people have what you need.
I used eBates as my shopping portal to go through to eBay, so I will get 1 to 3% of my purchase price back as a rebate.
