Dryer sheets that don't clog the filter

In May last year, we switched to cloth dryer "sheets". I read that the chemicals in most dryer sheets are toxic and potentially harmful to humans, and these cloth ones don't use chemicals. Somehow it's the weave that removes the static & makes the clothes softer. They are reusable for 500 loads. That's makes them cheaper, too. They also don't leave the residue that clogs the lint filter, the way most dryer sheets do, so they keep the dryer working efficiently. That's probably why these don't void dryer warranties. I bought them at http://www.staticeliminator.us. They are the two striped cloths in the photo.

In the summer and fall after we switched, they made the clothes soft and free of static. We did notice a bit more static in the winter. Our indoor air gets extremely dry in the winter. They still did an acceptable job, though. We could add some white vinegar to the wash, but I only did it a couple of times and then forgot about it, since the clothes, towels, sheets, napkins, and tablecloths have all been fine.