Now I would never condone curling one's hair while driving, but I admit, that is why I purchased this initially. Well, actually to replace my much older inverter with this one that was cute, kitschy, and fit cozily in my cup holder. For the record, curling and driving and don't mix. However, I found a plug in the car to be invaluable. And especially when traveling. You may have noticed that your laptop, digital camera , or ipad didn't come with car adapter but with one of these, you don't NEED separate car adapters! Not even for your iphone or ipod, because it has a usb port, as well. The fact that this also accommodates three prong plugs makes it even more useful than my house. I love this so much I bought one for my step-dad and my boyfriend's dad, as well, and it received RAVE reviews!!!