Back when I was in graduate school and as a post-doc, life was fairly blissful. Only one big responsibility: research. Now as a faculty member I find so many things to do. Teach, supervise undergrads and grads, publish papers, perform research, participate in service/administrative activities, get funding, etc. Plus throw in family life, friends, etc.
I've looked at all sorts of productivity systems over the years (GTD, 7 Habits, etc.), and have settled on a simple todo list method, where I have a master list of tasks in a todo list that I periodically review. The problem is the list just seems to get bigger and bigger. More gets on the list than comes off, especially during busy seasons, like when teaching or when grants are due.
I realize that busy is part of the game, but how do you keep track of everything and not go crazy?