I believe they’re listed in his book Career of Happiness. I don’t have it on hand right now.
A shalom bayis manual I highly recommend is Garden of Peace by R’ Shalom Arush. There are separate men’s and women’s versions. It’s much different than R’ Avigdor’s advice (The men’s version at least — I haven’t read the women’s one.) Following R’ Arush’s advice really works wonders.