JR Free Pass (Tokyo 23 wards)

I sometimes use this free pass ticket.
This ticket costs only 730 yen.
We can take JR lines freely in the area above.

I sometimes have to visit several companies in Tokyo a day,
and this ticket is very usuful and reasonable.

Tomorrow I will visit two companies along Yamanote Line,
but probably I will use JR lines more than five times.

Have you bought and used this free pass?
If you go to 3 places or more, this ticket must be more reasonable.
When you have an appointment or go sight-seeing, use this once!!