Goals are important. Without a goal - something you plan to do, accomplish, achieve - you can only wander aimlessly. (Or I guess you can always become a sedentary part of the scenery...) Note that this is *not* to say that wandering aimlessly is bad; some of my best finds have been from intentional aimless wandering! Just be sure you're doing so on purpose.
Revisiting goals is important too. I quickview my goals multiple times a day (vetting what I do against them I still need work on), and reviewing them is vital to my weekly planning, but once a year I spend several days thinking about what I want to be doing, what I need to be doing, and what I need to not be doing. I find that taking this time to recenter and realign myself makes a big difference in the energy, happiness, and enjoyment I bring to and get out of my work and life. So, my goals:
This is where I am going today (and tomorrow, and the next day, and...). How about you?
*** Want a fun job on a great team? I need a tester! Interested? Let's talk: Michael dot J dot Hunter at microsoft dot com. Great coding skills required.