The Swiffer is easily one of the best inventions of our generation. But those single-use cloths get annoying when you have to keep buying them. Karah over at The Space Between discovered that shammys actually make great washable, reusable Swiffer cloths.
Just throw the cloth on your Swiffer like you would anything else, and toss them in your laundry when you're done. You can even use both sides, making it easier to pick up more dust in one go. Hit the link to see it in action (with some very dusty pictures).