How much should I contribute to my 401K?

think about this: the stock market is losing money right now, so although its a good idea to save for retirement, i would only put in 6% as your employer will match that, I'd take the rest of my disposable income and pay down any and all debts that I had, that way when the market rebounds in 12-18 months, you will be able to pour even more money into it, right now if you have a 15,000 car loan, its costing you money, and if you are putting money into a losing market, its costing you money there too, so pay off the debt, and then in the future when the market bounces back, invest the money that you would otherwise have spent on your debts, too!!!