But in order to be happy, you'd better pay, otherwise people with poor quality will make things difficult for you.
Red envelopes are generally around 100-200. If you are particularly rich, 500 or 1000 will do. But the main idea is just that it doesn't have to be much, but it must be enthusiastic and hand out cigarettes, so that people will be happy and those with poor quality will not deliberately make things difficult for you.
I wish you a happy wedding.