We all have at least one open source project that we can't live without on a daily basis. That is why I'm calling for October 16th to be the Worldwide Donate to Open Source Day. $2, $5, $10, $25, $100 doesn't matter. Just go to their website try to find a donation link. Most just go to a paypal account. Give something to show all the great developers out there that their time is appreciated. If you work for a corporation try and talk your boss into making a donation on behalf of the company. It will help the developers wallet and clout.
What can't you live without?