Objective #2: Stop losing Blackberry contacts

Don't even remember how many times I have helped people save their future ex's numbers - JK.  This is one of the most common problems with people who use Blackberry: 'the contacts keep disappearing'.  My understanding is that this happens when one connects their blackberry device to their computer and the  Blackberry Desktop Manager tries to synchronize the information with your email client (MS Outlook, IBM Lotus Notes, etc.).  Soon after the blackberry is disconnected from the computer, a feature within the blackberry device, 'Wireless Synchronization' (for Address Book) gets triggered which I believe is the real culprit. Address Book wireless synchronization synchronizes your local/device contacts with the BES/corporate server and since (most) people don't have the contacts saved on the BES server the ones on your device get deleted in the synchronization process.
Fortunately there is an easy way to stop this happening in future (Sorry, no way to restore the lost ones if you did not create a backup)...

1.  On your device, go to your address book

2.  Press the application key button to bring up the menu inside Address Book

3.  Select Options

4.  Select Desktop under 'Address Book'

5.  Change the option for 'Wireless Synchronization' to No

6.  Press the application menu and hit Save  

...and you are done!  Remember, you are only disabling the Wireless Synchronization feature of the Address Book, so disabling this should not have any effect on your email or other features. Check with your IT department if unsure.