Firstly, thanks for making the web-playable version.
I've just made my way through to the end, being careful to keep track of the score. I worked out that you receive 10 points for delivering a package and 1 point for each dollar earned. You also lose a point for each dollar spent. I finished with 159 points and Glenda gave me a certificate that said NOT BAD. I suspect there is a last lousy point to get 160 points, otherwise Glenda would have been more generous in her praise. Have I missed something? (I went for the fancy haircut, rather than the buzz cut. That would have saved another 5 points, but I didn't think the buzz cut would be fancy enough for Sir Godfrey.)
I browsed through the Easter eggs file when I was finished, but don't think I would have guessed any of those strange commands. Perhaps there are points to be earned amongst those.