As great as volunteering is, sometimes a little selfish motivation is needed to kick start our do-gooder efforts. The chance to brush elbows with a who's who list of famous New Yorkers may be all the incentive you need to finally start those weekly soup kitchen visits you promised yourself you'd do in 2013. To make your philanthropic efforts easier, we've rounded up our favorite, celebrity-endorsed, NYC charities, as well as tips on how you can start getting involved. With a star-studded list and straightforward steps to getting started, there is no excuse not to start giving back this spring.