From today's "Motley Fool" newsletter about increasing your retirement nestegg:
"Imagine that you're 35 years old, you smoke one pack of cigarettes a day, and each pack costs you, on average, about $5. Multiply $5 by 365 days, and you're looking at an annual cost of $1,825. If you took this $1,825 and invested it in the stock market, earning the historical average return of 10% per year, in 30 years you'd have $31,845. If you invested $1,825 in the market each year for 30 years, you'd end up with more than $300,000! All that from quitting smoking."