It's not often that a garage sale comes with a free map.

For the 33rd such blowout in Lake Forest's Sunwood tract, the guide is likely to come in handy. Scheduled annually for the last full weekend in July, this year's garage sale is July 30 and July 31 in the neighborhood off of El Toro Road between Serrano Road and Toledo Way.

Local realtor Brenda Flick, who sponsors the yearly sale, said she started the sale "way back when" as a fun neighborhood activity. Since then, about 150 homes in the 237-home neighborhood take part, many with multiple sellers. According to Flick, shoppers begin arriving early Saturday morning, sometimes before the sun has risen. Sales usually wrap up at about 3 p.m., she said. The sales on Sunday tend to start up later, she added.

Food vendors are also in attendance, including a popular stand selling eggrolls. Free neighborhood maps are distributed at three or four spots in Sunwood. Deal-seekers are encouraged to park outside of Sunwood and walk to the neighborhood as parking is limited.

Participating streets are Auburn Dale Drive, Chapel Hill Drive, Dartmouth Circle, Foxborough Way, Heatherow Circle, Marylhurst Court, Revere Road, Rockford Drive, Toledo Way, Westover Circle and Williamsburg Court.

Lately, the sale has begun attracting shoppers from outside the Orange County boundaries.