learning to work more 'efficiently'
an 'efficient' worker
(..) Wait five more seconds. Right on the tick. DOC: Amazing. Absolutely amazing. Too bad the post office isn't as efficient as the weather service. DOC: Excuse the disguise, but I was afraid you wouldn't recognize me. I went to a rejuvenation clinic and got a whole natural overhaul. (..)1989 Back to the Future Part II