Many of us don't think twice about wearing sunscreen when we spend a day at the beach, but what about in your office? If you spend a lot of time by a sunny window, you're exposing yourself to harmful ultraviolet rays all day long. Not only is this harmful to your skin, it can also fade interior furnishings. Instead of slathering on zinc oxide or covering up the window, consider investing in a UV protection film that is placed right on top of the window. It will block 99 percent of the UV rays and is virtually invisible.