Imagine that your fiancé has told you he's going to draft a dream team in his fantasy football league, and it's going to cost him $20K to participate. Now imagine that he's told you your help is supremely important to him.

Tempting as it might be, make sure you're not using your fiancé as a coin-toss tool (ever noticed how people flip coins to find out what they really want?). When you ask for his opinion, take it seriously. And when you give him ownership of a task, don't second-guess every step.

Wedding reception

You'd be a little hesitant to give opinions, right? Some of your ideas might sound feeble, even to your own ears. Hopefully he'd welcome your thoughts, however odd it felt for you to venture them. Now imagine your fiancé feels kind of like that when it comes to the wedding.