I bought some yesterday at KMart. There were 4 in a pack for about $3.00 (I think). They came with NO instructions! So I'm about to graduate with a new bachelor's degree in IT, but I couldn't for the life of me figure out how to use these things! Do you get them wet or do you make the surface wet or do you just use them dry and then rinse? I'm so confused.....

I was surprised though. I lifted the package and it felt like there was nothing in it! I had to make sure the package was still sealed as I've already seen empty boxes on shelves (people remove and steal the contents but put the boxes back on the shelves).