"If you don't zero in a core set of priorities, nothing ever gets done because everything is too important." Former US national chief information officer Vivek Kundra made that point on his recent trip to Australia. It applies to national IT infrastructure decisions, but it also applies to something as simple as your to-do list.
Picture by Erik Charlton
It's a point we often make at Lifehacker, but it's always worth reinforcing: a big part of the point of making a to-do list is working out what actually matters. No one person can do everything. Some tasks can be delegated; some, inevitably, have to go by the wayside. Determining what goes in which category matters much more than simply outlining everything you would get down in a world of unlimited resources. We do not live in that world.