The safest investments while you're saving for a downpayment?

[Shane Hummus]

If you're just keeping your money in a traditional bank account then it's losing value but if you invest in the stock market theres always a chance it goes down and even if you do make money you might have to pay short term capital gains taxes which is nasty.

What do you guy think about this video on the safest investments for keeping your cash while you're saving for a downpayment?