Are you starting to get the renovation itch? With spring on the way, you might be tempted to launch those home improvement projects that you contemplated over the winter. However, as with any project, you will want to get things right. Let's take a look at four renovation shortcuts that can lead to disaster and the steps you can take to avoid them. Shortcut #1: Not Understanding Your Home's Structure Before you undertake any renovation involving your home's structure, you must be confident that you know exactly what is where. For example, do you know what is inside of your…