How to mitigate or minimize quarrels between husband and wife, especially on small issues?

The best way to resolve disputes between couples is to change your way of thinking. Instead of thinking of it as me vs. you, think about it as us vs. the problem. When it comes to resolving these small issues, always focus on *the problem* instead of your partner. For instance, if the issue is that you hate dirty dishes in the sink and your partner doesn't seem to care, tell him "I don't like it when dirty dishes pile up in the sink." rather than get accusatory and saying things like "You always leave dirty dishes in the sink". It can make a world of difference!