If you want to go from point A to B. What am i ?

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If you want to go from point A to B
You'll likely have to make use of me
I have no wheels; I'm not a car
In fact, I do not travel very far
I'm free to use; you need not pay
I'll be used by many in a single day
I can decide whether or not you'll pass
And sometimes I come with a looking glass

What am I?

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