Excitement building

Not only was today a rush, but I am also starting to feel the excitement build for my trip overseas.  This morning (and into the afternoon), I was able to finalise my PCB designs, have these sent out to the printer and order all parts I don't have on hand.  Finishing these jobs is a huge weight off my shoulders and the fact I was able to complete the work over a couple (long) days shows how much I can accomplish when needed.  I like to think I work hard, but after a few years of routine it seems easy to slip into habits.  Now there is nothing necessarily wrong with having habits, but in this case I am thinking about what I have come to accept as a "full day's work".  Again, I don't worry about what I can get done in a typical day, but I do feel that at times I might quit for the day when I could push on just a touch more.  Here's where the debate could start about limits and pacing yourself, but in short durations I think a few longs days back to back can be incredible; not only do you accomplish a heap of work, but you also feel a buzz from a job well done (like the satisfaction from being physically exhausted after a hike or workout).  It seems I only push myself past the "norm" when I am backed up against a deadline, like a conference or trip overseas.  Moving into my last four months, I m curious to see if I can instill sporadic burst of work without suffering from a lag afterwards.