I just got my Powerbook back from the repair shop, and after six weeks of Windows and Ubuntu use I noticed one missing feature - quick locking of the screen from a keyboard shortcut. In Windows XP you can do this with Windows-L (if you have a Windows key on your keyboard - bad luck Thinkpad users), and in KDE you can use Ctrl-Alt-L (sorry, don't know what the combination is in Gnome, but I'm sure there is one). But back in Mac OSX there isn't an easy option that I could find. Luckily, I have Quicksilver. Thanks to some hints in the unofficial users guide I now have a solution. Oh, you want to know what it is? OK. Essentially we tie the Fast Logout script supplied with Quicksilver to a hot key trigger. Here's how to do it;

Bob will then be your Aunty's live in lover.