1 super useful facility which does not exist in the USA but is everywhere in Japan.

Coin Lockers.

They are located in every station - You'll see them everywhere you go in Japan.

For $3 - $7, you can store anything for 24 hours. You simply put in the money and grab a key, or enter a passcode.
They are usually located at a train station, for ultimate convenience.


It's useful for:

• Keeping your travel luggage if you want to look around the area before going to your next location
• Storing your shopping bags, if you shopped a little too much :)
• Keeping your heavy jackets and coats, if the weather ended up being warmer

These lockers are always clean & pristine.  You'll never have to worry about putting your bags into some dirty box.
They are not only used by tourists, but are used by locals too! There are also people who work for these Coin Lockers who look around and make sure lockers w/ lost owners are taken care of, so don't worry and make use of them! 

The lighter you feel, the better. Especially while exploring Japan!

コインロッカー。便利で綺麗な日本のコインロッカー。
残念ながらアメリカには存在しません。
存在しても汚くなって恐ろしい事になりそう。