There is always some community service project you can partake it. Think of something you hate, and find a way to decrease that. I come from not the nicest area, crime is high, intolerance is high, unemployment is high, child abuse is high, education is low. I looked at all the things I hated and found a way to help decrease those in some way; for me that was doing things to help promote education. I spent no money, I was able to volunteer at schools, libraries and churches; I helped people learn how to read and that helped them change their lives. Find something you want to attack and work on it; you will find a way.
If as for right now, your stuck then I suggest doing things like freerice.com where you'll be helping fight world hunger.
I started buying fair trade products, among other things. Slavery is not dead! There are currently 27 million slaves, and this is not just human trafficking. The top three products that involve slave labour are coffee, tea, and chocolate. So, if this sounds good to you, you can start buying these products fair trade.
At my university, we have a club that is dedicated to help stop modern day slavery. There is a good little information section here: http://be-the-voice.org/slavery-through-the-ages/
This is also a good place to start: http://www.antislavery.org
Best way ever. It basically just requires you to do what you always do. When you download it, everytime you open a tap, money is donated. AND IT'S FREE.
You can help me win a video contest. It is a contest for rare diseases. The prize for the winning video is $50,000 donated to the charity of the video maker's choice. I chose the charity that helps fund research my my rare disease. If you would like to help decrease world suck by increasing the chances my charity will win the money we desperately need in order to find a cure for my disease all you need to do is go to my video"like" and comment on the page. Kind of like Project for Awesome only in the summer.
This is the link to my video if you want to help out:
All help is appreciated. We desperately need to find a cure for this disease. It leaves patients in a sort of living hell of constant overwhelming pain and torment.
Remember that you have no idea what it's like to not be you. You don't know anybody's story except your own. It's a lot easier to be nice to people you don't like if you remember that. Being nice to people=World suck decrease.
Also, being generally non-judgmental helps to decreas World Suck.