Answer:
What is easy to get into but hard to get out of?
I am always around you but often forgotten. I am pure and clean most time but occasionally rotten.
No legs have I to dance, no lungs have I to breathe. No life have I to live or die, and yet I do all three. What am I?
In all the world none can compare I am a tiny weaver my deadly cloth so silky and fair.
By myself, I'm practically nothing. Worthless as a leader, but when I follow a group, their strength increases tenfold. What am I?
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?