If you are planning to apply for citizenship, you may want to do so before May 4, 2014.
I have previously discussed the benefits of becoming a U.S. citizen in order to “save” one’s children. I still believe that if you want to become a U.S. citizen, you should pursue it as soon as you are eligible. However, I occasionally come across potential clients who have been lawful permanent residents for a long time . . . and want to renew their green cards before the expiration date.