We are also very particular about giving gifts. We need to get what we like, and we need to know what our future parents-in-law like with our girlfriends in advance. If my father-in-law likes smoking and drinking, these two aspects are essential. You can buy cigarettes instead of wine. The value of wine depends on your sincerity. We don't recommend buying cigarettes for the elderly, because cigarettes are harmful to health.
In many foreign countries, when friends and elders meet, they don't take out cigarettes to greet each other first, as people in China do, because cigarettes will harm people's health. Therefore, when we give gifts to our elders, we should also realize that we are sending health. Some things packed in gift boxes are beautiful, but they can't be used, so I suggest you choose better olive oil, because among all vegetable oils, olive oil is the most nutritious and expensive, so you can buy some good honey and brand cosmetics for your mother-in-law.
But one thing you should remember is that when you leave your future parents-in-law's house, you must accept the red envelope when your parents-in-law give you it. Giving you a red envelope means that the woman's parents recognize you, and among the man's parents, the amount of red envelopes given by the man's parents to the future daughter-in-law is higher than that given by the woman's parents to the man. This is also a courtesy.