How To Give Money To Someone In Japan

In above photo, there are two envelopes with two 10,000 yen bill inside. One is a proper way, the other one is not. Can you identify three mistakes?

Last week I worked as a coordinator and organized a few home interviews. As I was preparing for the payment, my mom saw how I prepared the envelope, which looked like the one at the bottom. Then she pointed out my three mistakes, and corrected as above.

Answers:
1) The face in bills. Should all be facing the front side of the envelope.
2) Bills should be crisp and new, not old and wrinkled.
3) Envelope should be plain. Should not use the ones that are used for mail delivery.



By the way, I should also add that there are also manners required on the recipient side: Even if anyone insists, do not look inside to check how much money is inside. When I gave the money away, not a single person checked how much was inside on the spot. Showing a doubt of the containment is already a beginning of impoliteness here.

While this seems like a very sophisticated manner, I am quite frustrated. I would rather have the content checked to make sure the business is good and done. In China, everyone instantly checked how much was inside. Of course actions are more obvious, but I felt quite comfortable in that context because that was the way people were responsible of each other, preventing serious consequences in case the content did not match what one claimed.

For small tips to weddings and funerals, how does your country deal with cash giving?