How to decorate with a spouse (!!)

This question is SUPER topical for me right now because soon we'll be moving into our new house and starting almost from scratch on the decor in a lot of rooms! Jason wants to be involved in the decor but he and I work very differently with picking out products and styles. Not to mention all the DIY projects we'll need to do, like landscaping and plumbing changes!

But here are some Cliff's Notes and four important questions to ask for decorating or doing home improvement with a spouse! I gotta...