If you're moving from a large home into a smaller house or condo, you're probably looking forward to enjoying a lower utility bill and not having to do as much cleaning. But before you move, you'll want to take certain precautions to ensure that you're not overwhelmed. A smaller home won't have as much room for your belongings, which means you may need to get creative. Here's how you can downsize without losing your mind. Decide What You're Going To Keep Before you do anything else, choose which of your belongings are coming with you. Unless you've habitually been getting…