New York City's metro card system has eliminated tokens altogether, and those plastic cards can sometimes have small balances left on them going unused. One organization, the Next Stop Project, collects these low-balance cards and combines them to form full-fare cards that are donated to New Yorkers in need. Whether you're a full-time NYC resident or are planning to visit for work or vacation, don't toss cards that have value left on them. Learn more at nextstopproject.org.