Are there local guides available in Tokyo who specialize in helping travelers learn how to use the transit system and navigate complex station layouts?

We ask the same underlying question in different ways.

• Are there local guides available in Tokyo who specialize in helping travelers learn how to use the transit system and navigate complex station layouts?
• I need help figuring out Tokyo's trains. Can I book a private guide for a half-day session to teach me how to use a Suica card and get around Shinjuku station?
• Are there any local experts in Tokyo who offer orientation services for using the transit system and finding my way through big stations?