Sharing is caring. Even if it is only data.
Automate whatever you can! This will save you the most time.
Best way to resolve a conflict is finding the roots first.
You better know what you are doing.
Make sure that WordPress, your plugins, and your theme is updated to the latest version.
Know what you are working with so you can refer to it faster.
Listen to the Force.
My workshop at WordCamp Switzerland 2018