As much as I love computers and gadgets, nove of them have ever replaced my need for yellow legal pads. (although I do find myself using OmniFocus more and more for my projects & assorted lists...there is still something about writing stuff out on paper.) I am constantly making list, crossing items off and then starting a new list...the recycling bin in my office is mostly crumpled up sheets of yellow paper. As an INTJ (Myers-Briggs) I am always thinking in terms of strategies & systems. It doesn't matter if it is at church, at home, planning a trip, or playing a game...my brain is naturally wired to figure out how something works and then work the system.