Be Realistic With Your Time
When it comes down to the last month of your planning (and when you're particularly harried) look at your mile long to-do list and cut three things. Yes, cut three things. Not crucial things that you just don't feel like doing, such as picking a processional song or confirming final details with all of your vendors. Eliminate only the over-the-top tasks like hand-painting "Just Married" signs, or baking cookies for all of the welcome bags. Cross them off and make a pledge not to think about them again.