Editor's note: Lawyer and car-buying expert Adam Goldfein fills in for Clark Howard Monday the 19th - Wednesday the 21st of this week. Below is a summary of some of what he discussed. Visit AdamGoldfein.com for more information.

Most manufacturers go on a blitz with their "End of the Year" sales events between Christmas and New Year's Eve. But is it a good idea to lease right now or should you wait?

There are essentially two times in every calendar year when you can get a deal on a car: During a change of model year in August and during a change of calendar year in December.

At this time of year, there's a particularly big push for leasing. According to Adam Goldfein, leasing makes sense only in certain circumstances:

• You plan to lease for less than four years
• You have good credit
• You drive fewer than 20,000 miles each year