Manage your energy, stay motivated. Some work projects excite us--we jump right in and become so engaged and consumed with what we're doing that we run the risk of burning out. Other times, we find ourselves in a slump--everything on our to-do list is something we don't actually want to do. But we don't have to live in either extreme. We can regulate our energy and find ways to get started--and keep going--even on tasks we don't enjoy...