Years ago I came across some happiness advice that has never failed me. I liked it because it worked for me and I loved the name of the originator, Baruch de Espinosa: or, Spinoza. "Spinoza knowza", I used to tell my philosophy students.
A friend gave me a bottle of wine maybe 50 years ago. "It is really good wine" he said. And then added, "If you open it when you have a good friend over it will be all the better". How true.