What stays where it is when it goes off? (two words)

Add an s, and I do not become plural, but you need me to go anywhere. Add what you ...

You sit on it, but you don't take it with you

Scan me and be done...............beep, beep, beep. your total is $$$$$

John Wayne, or Richie Cunningham's mom.

I look like something that sonic the hedgehog would fun collecting.

What is something that people make every single time but never gets old

I am not alive, but I grow; I don't have lungs, but I need air; I don't ...

I am everywhere. I make friends out of strangers, and enemies out of friends; I make...