Fight FOCA - go sign the petition and keep the Freedom of Choice Act from passing in congress. That is the piece of legislation that would throw away all the protections against abortion people have worked for in the last 35 years. It's the one Obama said he'd sign his first days in office. It's the one I blogged about here.
I don't know if signing a petition would make a difference, but every little bit helps and it took me 30 seconds.