Inspired by this hint about the Screen Sharing application in /System » Library » CoreServices, I found another small but very nice application there.
Drag Archive Utility to your Dock (or toolbar or sidebar). Now, you can drag a folder onto the application, the result of which will be a compressed archive in the same location. If you don't like the default .cpgz format but prefer ZIP, or want to have another destination for all archives, just open the utility and change its Preferences.
[robg adds: This is the application that was mentioned in this hint yesterday. It's the program that replace BOM Archive Helper in 10.4, to handle all the background compression and expansion tasks. As noted in yesterday's hint, there are several useful settings in its options, so take a look.]
You can use the Option key to open stack items in the background and keep your stack open to be able to choose other items -- just hold it down prior to clicking, and the action will leave the stack open.
You can also navigate stacks with the keyboard. Use the arrow keys to move around, and this works quite well with the keyboard shortcut Control-F3 to activate the Dock. You can also type ahead to get straight to an item in the stack, which is very useful when you have a folder full of items.
It's very convenient to dedicate a Space to be your Windows desktop if you run Windows alongside Mac OS all day like I do. I haven't tested with Parallels, but the latest Fusion release supports the Control-Arrow keys just fine, even when zoomed to Full Screen.
[robg adds: A tester on the queue review site indicates that this works well with Parallels, too. I didn't think I'd use Spaces much at all, but I've found two really good uses for it so far in Leopard. One is for virtual machines, and the other is for screenshots, which I obviously do a lot of -- I use Backdrop and/or Desktop Curtain, and I have them set to run in their own space.]
In attempting to use Disk Utility to make a .dmg image file archive of a volume on my Mac under Leopard, I got a new error message that did not appear before with Tiger: Unable to create "Drive To Backup" (Resource busy).
Apparently in Leopard, you have to first unmount the volume you want to back up before you attempt to backup the image from the File » New » Disk Image From menu selection.
[robg adds: A commenter on the queue review site notes he had the same problem, but believes it to be a bug (which he filed). In the interim, though, this solution works.]
I have a lot of files that contains data in plain text format with different extensions -- things like .cfg, .dat and .tex. However, those files are not recognized by the Quick Look viewer. It is possible to make these other files visible with the default Quick Look viewers by simply adding a UTI (Uniform Type Identifiers) file reference to an application's Info.plist file.
For example, TeXShop is an application that writes Latex files in plain-text with the .tex extension. If you want to see these .tex files with Quick Look, conrol-click on TexShop.app in the Finder and chose Show Package Contents from the pop-up menu. Navigate into Contents, then open Info.plist with TextEdit and add the public.plain-text string to the UTTypeConformsTo key as follows:
First look for the UTExportedTypeDeclarations section in the original file:
OS X 10.5 now allows you to add items to the Finder's sidebar via drag/drop (to the SHARED section) from any Open/Save dialog box. This can be a real timesaver if you're, for instance, temporarily using one folder for a project. Drag it to the sidebar the first time you save, then have fast access to it for future files you add to that folder.
Apple has announced that you shouldn't be running Time Machine if you are using Aperture unless you're in manual mode. This got me to wondering how I used manual mode in the first place; Google helped me discover that a right-click on the Time Machine icon in the dock offers a Back Up Now option, which does just what you might expect. Using that feature, it appears that you can turn the big Time Machine switch off, and still do manual backups ... which brings me to my hint.
If you are using a laptop and have a network-connected drive with your Time Machine files on it, you may find that backups are somewhat unpredictable, in that they don't seem to happen automatically. You'll find this especially true if you did the first backup with a wired connection, as your machine will then never back up over wireless. This turns out to be because, on a network drive, Time Machine creates a sparse image (an expandable disk image) with the MAC address of the machine in its name. Then, when you're on a wireless network, Time Machine doesn't find the file, as the MAC address has changed.
These images have the form of Machinename_012345678abcdef.sparseimage. If you make a symlink with your wireless MAC address to the existing image, then Time Machine starts working again. Then you can turn off automatic backups, and just do a manual back up every day when you get home.
In the Finder, navigate to /System » Library » CoreServices » Archive Utility.app » Contents » Resources, or just copy (triple-click then Command-C) and paste this path into the Finder's Go » Go to Folder box:
Once there, double-click on the Archives.prefPane icon. OS X will then ask if you want to install this pane for yourself or all users. Once installed, you can access it via the Others section of System Preferences. You will then have easy access to all of the options available for expanding archives.
[robg adds: One of our queue review team (need a catchy name for this group) point out that you can get to these prefs by simply launching the Archive Utility in the CoreServices folder; it's a regular app with preferences available in its program menu. Having it installed as a preferences panel, though, is quite handy.]
I was a bit bummed to find my ReadyNAS NV+ wasn't seen by Leopard for Time Machine backups, but I found a workaround. This does require two machines running Lepoard, so if you only have one, beg and plead with a laptop owning friend to borrow his for a few hours.
[robg Update: The original content of this hint can be found in the "Read More" area below. However, since it was published, a much simpler method was discovered, as noted in the comments. Open Terminal, and type: