Spending habits of young adults

$2.2 million: Average amount a 21-year-old will spend between now and the end of his or her life

58: Percentage of 21-year-olds who have four or more credit cards

$2,984: Their average credit card debt

47: Percentage who subscribe to wireless phone service

70: Percentage of 21-year-olds who have a full- or part-time job

10: Number of years the average 21-year-old waits to buy a home

Sources: Retailtrafficmag.com, Nellie Mae and Telephia Inc./Harris Interactive