I love Swiffer cloths. Keep reading for a great helpful hint! I use them mainly for dusting various things like the dresser top, ceramics, window blinds, books, DVD cases, computer and for the floor of course. I first start with a lighter job then pick another which may be a little dirtier etc... This way, Swiffers can last for awhile longer unless you go straight for the floor. But here's something they don't tell you, you can wash them so they can be used again (I found this out by accident.)! They don't come out perfect but they definitely are usable again. I throw them in with my regular laundry which is never really dirty and run it on the light cycle. I also let them air dry. I don't have any white clothing so be careful what you wash the Swiffers with. You may want to delicate a load to Swiffer cloths exclusively so you do not run the risk of ruining your clothing. My washing machine is also 20 years old. This is only a helpful hint, use at your own risk! Anyway, if you feel adventurous, you can possibly cut your Swiffer cost in half. It's good for your wallet and the environment!