The next time you order a fairly widely available item on the Internet, such as books, DVDs, CDs, or computer software, first go to Google and enter this in the search box:
BTW, do use the quotation marks. You will probably be amazed at how many Internet merchants offer some sort of free shipping deal. To save time, you can also enter the name of the merchandise category you are interested in:
"free shipping" books
"free shipping" DVDs
"free shipping" CDs
"free shipping" software
...and so on.
Try it-- I think you'll find that this tip means you'll rarely need to pay shipping charges on Internet orders again!