Ever buy something only to stop back a week or two later and see the price has dropped or the store across the street is running out the same thing cheaper? Good way to invoke instant buyer’s remorse.

Fortunately many retailers offer refunds for sale pricing, subject to a few rules like it can’t be a close-out price, internet-only deal, etc.

PriceProtectr.com is one of the more potentially useful sites/services I’ve looked at in awhile. Machines were made for work like Price Protectr (PP) is doing. Their service, free as of this writing and zero third party ads spotted (just how are they making money anyway?), will keep checking to see if the price for something you just bought went down and then email you when a lower price is detected so you can take action and manually request a refund.

For example, two of our recent bigger purchases are the Samsung HDTV 1080p which we paid $1,799 and the Sony Handycam for $999. After registering for PP, I went to Best Buy’s website and copied the sales URL page into Price Protectr.

PP showed me that our TV was on sale for $1,699 and the Handycam for $899. We printed the sales offer out and will be heading back to Best Buy later tonight to get our $200 refund. I’ll update this post if they give us any problems when we try to get the money back.

Those thinking about buying the new line of iPods announced today might want to bookmark Price Protectr now. Check out that iPod Touch model which seems typically Apple expensive at $399 for 16GB when you can now get the classic iPod with 160GB drive for $50 less ($349). 16GB might seem like a lot, but isn’t the minute you start building a good-sized music collection. A smaller 8GB iPod Touch is available for $299.

Apple slashed the price of its 4GB iPhone, which seemed to negatively impact stock price today (disclaimer: I own Apple stock) so if you just bought one of those, PP should be lighting up with good news soon (unless this is considered a close-out deal). If you’re buying any consumer electronics or TVs, this site could definitely help make sure you get the best deal.

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