Tips/tricks on saving/filing more efficiently using Windows 7?

As a paralegal I am constantly saving and filing documents electronically to one of hundreds of folders. We also recently upgraded to Windows 7. I am wondering if anyone has any tips/tricks for making saving/filing more efficient, particularly when saving e-mails from Outlook, PDF’s from Adobe, and MS-Word documents, but also for opening documents from the myriad folders. Is there any way, program, tip, etc. that would simplify this process?