ZC: I was going through some old clothes last week, and I was just about to throw out a paint-stained fleece jacket and I realized that the back was perfect (no paint), so I'm going to cut it up and make more home-made swiffers!

I was bothered by the waste, not to mention the cost of the swiffer mop head thingies and made a bunch of reusable heads out of old kitchen towels.  I didn't do them as nice as yours, I did them more like the Maven suggested...  I took a thin towel and cut it to about 10" x 5", then I sewed a smaller (less wide) piece of thicker towel in the center.  That way the thinner part stuffs easily into the holes and the thicker part is more gentle on my wood floors.  I use them for dry and wet mopping and I think they work better than those that you can buy - and they are free! I thought I was being pretty keen then I did a quick search and see that it's been done by someone just as, maybe more keen :)

Brilliant! I have to say that I'm attracted to the Swifter system, but repelled by the throw-away-dust heads element...

This makes the waste stream lighter and provides the benefits of the modern system...  

Okay, wait a minute...you wouldn't even have to sew the mop head. You could just use a piece of fleece and stick it into the four holes on the top of the mop head to keep it in place.