Window shopping on Amazon is one of the worst money-wasting habits you could have, mainly because it encourages impulsive shopping behaviors. If you looked back on everything you bought last year, there's a good chance your eyes would pop out of your head.

Fortunately, Amazon has an awesome feature called Order History Reports which can provide you with a lot of useful data in spreadsheet form--and with a five-minute analysis, you'll be able to see where all of your money actually went.

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To access the Reports dashboard, navigate to Amazon and click on Your Account at the top right. Under the Orders section, click on Download Order Reports. Done.

To generate your first report, set the Report Type to Items and set the Start and End Dates to January 1 and December 31 of last year. Give the report a name (if you want), then click Request Report. In a few minutes, the report will be ready in CSV form.

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Open the CSV file in your spreadsheet software of choice to find dozens of columns that describe every aspect of your purchases, including categories, conditions, purchase price vs. list price, shipping destinations, purchase methods, and more.

Sum all of your purchases to see how much you spent that year, or play around with it however you want to see all kinds of patterns in your Amazon shopping. For example, check average discount per item to see how often you're getting deals.

Have you used Order History Reports on Amazon? What's your most surprising find? Tell us about it in the comments!

Pro Tip: Before you go on another shopping spree, make sure you know all of these crucial online shopping terms that you may not know!

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