»On setting up a Mac again and again and again

When setting up a new Mac (which I have to do with alarming frequency! alas!), I rely on my cheat sheet, dashboard widget notes, and a few other notes. I also found LockTight, and Visor (once again, props to the folk(s) at Blacktree!).

Part of the reason that I so wanted a hotkey for screen-lock is that the screensaver sometimes decides that it no longer requires the password to unlock, and this aggravates me no end. A workaround for that:
% cd~/Library/Preferences/By Host/
% rm com.apple.screensaver..plist file.

You then must reset the Screensaver Preferences to again enable locking.