Celebrate by signing up for the Community Outreach Group for Landscape Design (or COG for short) "Greening Brigade." You can help them with their mission to Green Communities by Design. They'll email you every time they need volunteers to help put one of their plant-ful installations in place.
If you don't like to get dirt underneath your fingernails, you can help them out in other ways... like grant writing, making phone calls, updating their website, etc. Just contact them online or by phone at 781-642-6662.
Volunteering is a great way to expand your professional experience, beef up that resume, and get that warm feeling in your heart, knowing you've done good. Real good.
The first image is courtesy of Girla Obscura.
The monkey photo is courtesy of Tatemae.