Savvy online travel shoppers are already well aware that sites like Travelocity, Expedia, Kayak and Orbitz can save bundles of money on airfare and hotels.
When it comes to booking last minute trips, especially over a busy holiday weekend, it pays to dig into the Deals section of the websites.
especially if you're flexible on destinations.
You never know.
You might find a too good to pass up vacation package.
Another way to go about seeking out the best deals is to install a tool into your Internet browser that can alert you when it's found a better price elsewhere.
The browser extension is called Invisible Hand, and it works on Firefox, Google Chrome, and Safari.
From getInvisibleHand.com, follow the simple instructions to download the tool to your browser.
Once installed a golden window will pop up at the top of your page if it finds what you're looking for on another website for less money.
Invisible hand is great for airfare and hotels but also comes in handy for regular online shopping too.
In San Francisco I'm Cara Suboy Cnet.com for CBS News.