Answer:
I get wet when drying. I get dirty when wiping.
I dance on one feet and knows only one shape. Someone with same name as me is very good with directions
You throw me out when you use me and take me in when you are done.
I can be thin but not fat; in your body but never on your placemat. I'm always better when I'm fresh but you'll never see me in the flesh.
What can you lose that will cause other people to lose theirs too?
I am a band that does not perform, sing, or act. What am I?