You've probably seen more than your fair share of infomercials, but have you ever wondered if those products really work? So 23ABC conducted some very unscientific experiments to see if they'd work at home like they do as seen on TV, and gave each product a letter grade for performance.No matter how cheesy the acting or corny the pitchman, sometimes you just really want to know if the ShamWow can soak up half a bottle of cola.When trying to re-create a scene from the ShamWow infomercial, soaking soda up out of a carpet square, and it didn't even do half of the job on two different attempts. So we gave the ShamWow a C, because it while it smells like rotten eggs when wet, it would likely work for most of your household uses. But 23ABC producer Angela Gregory-Gutierrez gave her ShamWow an A."I love the ShamWow!" she exclaimed. "I use it around the kitchen, in the bathroom. I actually use it to dry off my car when I wash it at home."Then there's the popular Yoshi Blade, a new ceramic knife. It didn't cut through a pineapple with ease like the infomercial showed, but didn't bruise a tomato either.However, when we re-created the knife sharpener trick, demonstrating that the ceramic blade was stronger than steel, the supposedly indestructible blade chipped and broke. But we gave it a B, because the blade typically wouldn't be abused like that.Of course there are tried and true classics, such as the Snuggie, now available in fashion prints that are popular among the morning show crews.But we've heard mixed reviews on the Shake Weight, a new workout tool. The 23ABC intern Victoria has used the Shake Weight and gave it a C."Because you can feel it when you're working out, you can kind of feel that it's doing something," she said. "But I think you have to do it a lot more than six minutes a day to get any results."As for the Smooth Away, a sandpaper-like exfoliater that is supposed to replace your razor, 23ABC's anchor Jackie Parks gave it a D."If you rub hard enough, the hair disappears, but so does your skin!" she said, jokingly.As for the newest TV product, Style Snaps, an easy way to adjust your pants hem, we gave them an F because the sticky side wouldn't hold even to the fabric.These products didn't come cheaply. While products such as Mighty Putty and Uglu cost $5 to $10, the ShamWow was $15, and the Snuggie, Shake Weight and Yoshi Blade were $20 each.