Give a man a fire and he's warm for a day, but set fire to him and he's warm for the rest of his life.
If some messages aren’t showing up in Outlook (but they still show up in OWA or other clients) you may have a View filter. If you have a View filter it should be indicated in the top right corner of the main Outlook window. To clear a View filter in Outlook: View > Arrange By > Custom > Filter > Clear All.
Symptom: Out of office assistant is not working in Outlook giving the following error: The command is not available. See the program documentation about how to use this extension.
Solution: In Outlook go to Help, select about Microsoft Outlook. Select disabled items. Out of office assistant is in the dialouge box. Click on enable and the out of office assistant works again.
You can alphabetize your Favorites/Bookmarks by selecting Favorites (IE) or Bookmarks (Firefox), right-click one of the links, and select Sort by Name.
In Outlook when you click on the little book to view your address book, or click on the To button in an e-mail message your default address book is open. If you have more than one address book you have to select it from the drop down menu in the top right corner.
To change your default address book in Outlook use the following:
Tools > Address Book > Tools > Options > select the desired list from ‘Show this address list first’
Word uses Reading Layout as the default view whenever it opens email attachments or other non-Word files. The idea is that Reading Layout makes documents easier to view, because the file is repaginated to fit your screen. But repagination can make lists, tables, and other document structures a bit difficult to read.
To prevent Word from automatically using Reading Layout view, click the Tools menu and select Options. In the Options dialog box, select the General tab. Remove the check mark next to Allow Starting In Reading Layout and click OK.
If you use Microsoft Exchange Server, you can delay delivery of an individual message using Outlook. Everyone can use rules to delay delivery of all messages by having them held in the Outbox for a specified time after clicking Send.
In the message, click Options.
Under Delivery options, select the Do not deliver before check box, and then click the delivery date and time you want.
This could come in handy if you are leaving the office early: set an e-mail to your coworkers to be delivered around closing time so they think you are still working. 
Have you noticed that Firefox can be a memory hog (still not as bad as IE7), especially when you have lots of tabs open? This might help.
Congress in its infinite wisdom has made a largely arbitrary change to the rather arbitrary Daylight Savings Time system as part of the Energy Policy Act of 2005. When this law goes into effect in 2007, DST will start three weeks earlier (2:00 A.M. on the second Sunday in March) and will end one week later (2:00 A.M. on the first Sunday in November) than what had traditionally occurred. To accommodate the DST change, most systems must be patched. Otherwise, timestamps will be off, and some applications may fail to work. This could effect a variety of systems including operating systems, servers, cell phones, routers, and databases.
I’ve just begun digging into Microsoft’s documentation on this issue, so more info to come, but there seems to be some nonsense about updating enterprise servers before enterprise workstations. I also am really unclear on how this effects Windows Mobile smart phones. Hopefully I’ll get those parts worked out soon and get back with a follow up post…
More info: edgeblog, Microsoft
In Outlook 2003 (not sure on older versions) Insert > Signature is not available if Word is your e-mail editor. Turn off Word as your editor by going to Tools > Options > Mail Format and un-check both check boxes.
To decompress and unpack a tar.gz file in Linux use the following:
tar -xzf file_to_unpack.tar.gz
From http://en.wikipedia.org/wiki/Tar.gz