See which groups an Address Book contact belongs to (Leopard)

Just hold the option key down while a contact is selected and see to
which groups they belong!

Transport All Windows at Once to an External Display on Leopard

Leopard differs from Tiger in what happens when you plug in an external display to your MacBook. Unlike Tiger, even if the external display is set to be the primary display (i.e. the one with the menu bar), all windows stay inside the internal display. If you have many windows open, moving them one by one is a major bummer.

To work around this "feature" (read "bug") simply close the lid of your MacBook right before plugging in the external display. As soon as the display is recognized all windows will automatically be moved to it. Only then, if you don't have an external keyboard and mouse (or simply want to avoid overheating of the MacBook), open the lid back.

Toggling Spaces on/off instantly

Instead of clicking 4+ times to get to the preferences panel and toggle Spaces, you can simply use this AppleScript:

tell application "System Events" to tell spaces preferences of expose preferences to set spaces enabled to (not spaces enabled)

As usual, I hook it up to a keyboard shortcut using iKey.

Enabling Bluetooth File Transfer on Leopard

Among the changes Leopard introduces is that unless you enable "Bluetooth Sharing" in the Sharing preferences panel, any attempt to send files to your Mac via BT fail. For me, this is a critical part of my GTD work flow, of voice memos from my mobile phone being transfered to my Mac for processing this way.

Outgoing transfers, which I hardly use, seemed to work regardless of
this setting.

Too bad Apple doesn't bring up some informative error message on such attempts and had me waste quite some time figuring this out :-(

Instantly Move Selected Messages in Mail.app

Being an early adopter never comes without cost. Now, with Leopard and its Mail.app 3.0, plugins such as MailActOn unfortunately don't work.

For a quick workaround I fire up this AppleScript (using a hotkey assigned with iKey) to move the selected messages to my "Archive" folder. It can easily be tweaked to achieve similar functions:

tell application "Mail"

move the selection to mailbox "Archive"

end tell

Enjoy.

QuickSilver Firefox Bookmark Indexing with Multiple Profiles

QuickSilver (as of b52) only seems to index the last profile, when sorted by names.
So, to index your default profile simply rename its first part (e.g. 'ags7sd6' in 'ags7sd6.default') to something that will appear last among your profiles (e.g. 'zzzzzz').

To index all profile, you could create a fictitious profile and a script to merge all the individual bookmark files. Or wait for the QS plugin to be upgraded and be smarter.