Answer:
I am an animal and a hair product
You throw me out when you use me and take me in when you are done.
I keep growing and am practically indestructible. I get eaten, but always come back. I survive cold and lie everywhere. You see me everyday. What am I?
Things here are usually tagged with red stickers.
In all the world none can compare I am a tiny weaver my deadly cloth so silky and fair.
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.