Answer:
Other terms for this handy device include doohicky, doo-dad, and whatchyamacallit.
I have a ring, but no hands. I used to be plugged into the wall but now I follow you every where. What am I?
A house where you are brought, If they find you or get caught. If you cross the government, This is where you will be sent.
The more you take, the more you leave behind. What are they?
Everybody's got one.
When is it bad luck to see a black cat?