I found a tutorial to make a swiffer cover on Berlin's Whimsy and really wanted to make one. Using a reusable cover is much better for the earth (no more throwing away a swiffer pad after each time) and much cheaper. I bought the towel for about $2 at a thrift store and only used half of the towel to make it.
I don't have a swiffer so I offered to make one for my sister. I offered to make it a long long time ago and just now got around to doing so since I'm going to see her this weekend. I haven't added the velcro yet (in the tutorial I linked she used buttons but I decided velcro would be much easier) and am going to add it once the cover it on the swiffer so I make sure to put it in the right place.
Since I don't have a swiffer I just used my imagination and pretended it looked really nice on a swiffer. :-)
I'm going to give it to my sister this weekend and add the velcro. I'll be sure to post pictures!