Tip: Windows Mobile — Manage Your ActiveSync Settings
To tell ActiveSync what you want and don't want it to sync:
1.) Open ActiveSync on your computer
2.) Connect your handheld
3.) In ActiveSync on your computer, pull down Tools'Options
4.) You'll see a list of the things ActiveSync can manage, including Contacts, Calendar, Email, Tasks, Notes, etc.
5.) Check only those you wish to sync.
6.) Some options, such as calendar, have additional options you reach by pressing "settings." You can tell it how far back to download your calendar, for example.
Limiting the amount of outdated information on your handheld will help conserve space on the device. And it makes sifting through to find what you want less taxing.