Don Vandervort, Head Homeboy, has written more than 30 DIY home improvement books, been a segment host on HGTV, served as MSN.com's home improvement expert and written countless magazine articles.
If you have a gas grill, periodically turn off the gas supply to the barbecue and check the burner orifices to make sure that they are not clogged by meat drippings. You can use a brush and/or a toothpick to clean them.