How to be a helpful Spouse to a Preacher

If he needs a Slide presentation done, that would help a great deal. I can give you a few pointers on how to make slides for a sermon. It's a ministry in itself -- you'll need the Holy Spirit to show you which pictures to put and what to highlight, which fonts to use, make sure it's large and clear and in point form, not paragraph form, etc

Also giving him time off to be alone to prep is great. And enough sleep for him. Even reminders for when he has a sermon coming up