Adobe keeps a three-month cycle on security updates. I think that timeframe is fair enough but they need to relax the requirements to obtain the mass-deployment packages. They want the corporate users to use their products and Adobe Reader is firmly entrenched in the marketplace. So why not make it easier on the system administrators around the globe who are deploying their product?
On Tuesday, if you use Adobe Reader and share PDF files via email, then you should update to this newer patch. As far as the Microsoft updates are concerned, most will be taken care of via Automatic Update features in Windows. If you do not have this feature turned on then you should consider reading about which updates apply to you.
If we truly want to defeat the criminal presence on the Internet, then security becomes everyone's responsibility. If you use a computer, take the time to keep it patched and updated because no matter what software you use, there will always be a flaw hidden somewhere.