People love variety, which is why you find so many things in so many colors and tastes. But choosing a variety of investments for your retirement plan account doesn't come as naturally, which is why learning about it is so important.

Every year, the IRS announces the latest contribution limits for retirement savings accounts (including employer-sponsored plans and IRAs) and Health Savings and Spending Accounts; some limits are experiencing one of their largest increases in decades. This online overview can show how much you can potentially save.