TODAY

BLOOD DRIVE, 8 a.m.-3 p.m., Mililani High School; 7:45 a.m.-1:30 p.m., Kalanimoku Building, 3rd floor conference room; must be 18 or older, in good health, weigh at least 110 pounds and present photo ID. 845-9966.

MCCULLY/MOILIILI NEIGHBORHOOD BOARD MEETING 6:30 p.m., Washington Middle School.

KULIOUOU/KALANI IKI NEIGHBORHOOD BOARD MEETING 7 p.m., 'Aina Haina Public Library.

DOWNTOWN NEIGHBORHOOD BOARD MEETING 7 p.m., Pauahi Recreation Center.

KAILUA NEIGHBORHOOD BOARD MEETING 7 p.m., Kailua Recreation Center.

TOMORROW

BACKYARD COMPOSTING, organic gardner, Evelyn Giddings, to lead a workshop on how to build and harvest a compost pile, 10 a.m.-noon, The Green House, 224 Pakohana St., Pauoa; $15. Registration: www.thegreenhousehawaii.com, 524-8427.

BLOOD DRIVE, 8 a.m.-3 p.m., Nanakuli High & Intermediate School; 7-11 a.m., Kaiser Koolau Clinic; 1-3:15 p.m., Honda Windward; must be 18 or older, in good health, weigh at least 110 pounds and present photo ID. 845-9966.

SATURDAY

AARP CARFIT, free class conducted by a trained professional on comfort and safety-enhancing adjustments older drivers can make to their cars, 8 a.m.-noon, Kaimuki High School; free. Registration: 843-1906.