Financial numbers you should know

MSNBC Money by the Numbers: Vera Gibbons illustrates limits on borrowing and savings toward retirement, aired on September 8, 2011:
http://money.msn.com/money-video/default.aspx?vid=82b71386-47df-4b91-b567-337da45297d3

• 0% of take home pay on credit card debts, definitely no more than 5%
• 15% or more of gross set aside for retirement savings
• 25% of take home pay is maximum for housing costs, including mortgage payment, property tax and insurance, or 30% for rent.