Saving energy can be tiring

As the first week of what we like to call our "energy-saving summer schedule" nears its close, I can't help but note how exhausting saving energy is. I'm not complaining about the glorious three-day weekends, but working four 10-hour days in a row every week takes some getting used to. I was talking to a prospective student this morning at a time when I normally would have been pouring a second cup of tea and staring bleary-eyed at the newspaper. (His enthusiasm for coming to school, however, helped wake me up. I don't meet that many prospects who are as amped about studying engineering as he was.)