In the next few weeks, the odds are higher than usual that you'll inherit an amusement park or a tropical island or a profitable pig farm. There's also a slight chance that you will win a Dutch lottery, find a diamond ring on the sidewalk, or be picked to star in a new reality TV show, "How Would You Use a Gift of Ten Million Dollars?" But what's far more likely than any of those possibilities is that you will be able to capitalize on a legacy whose cash value is hard to estimate. Is there any birthright you've been neglecting to exploit? Any part of your heritage that may be ready to bring you a boost?