Two weeks ago, I wandered into an Office Depot that was having a moving sale, and just about everything in the store was 50% off. The computers and most of the

Two weeks ago, I wandered into an Office Depot that was having a moving sale, and just about everything in the store was 50% off. The computers and most of the electronics were only 10-20% off, with one major exception: graphing calculators. They had about 30 Texas Instruments graphing calculators of all kinds from 40-50% off. I bought them all, 30 in total, and started selling them on Amazon and Ebay, undercutting everyone by a few dollars. I just shipped the last two off yesterday, and after shipping costs and selling fees, I made just over $1,000. It's not something that you can do any time, but going-out-of-business sales aren't that uncommon, and suffice to say that I will be on the look out for them from now on.