The dollar won't be crashing, they gave you terrible advice. And while gold is consistently stable, it's not worth your time. However, he may have been referring to the Dollar Inflation Rate, which has gone up 19.2% since 2010. In the long term, letting your money sit in a savings account will lose you money, since the average interest is 0.06%, less than the 1.3% inflation rate. If you want my advice, your money is
safest in an S&P 500 index fund, which has an average gain of 16.5% yearly (The average yearly gain for a hedge fund is 13.6%
Article). It is also worth looking at promising stocks that offer strong dividends, my suggestion is Hercules Capital (NYSE:HTGC), which yields an annual dividend of 11.26%. You may also find REITs, Real Estate Investment Trusts, to be of interest, as some of the more bullish trusts can offer dividends of up to 40%.
Cheers