Free e-waste recycling 9 a.m.-1 p.m. Jan. 4, Diablo Valley College, 312 Golf Club Road, overflow parking lot 7, Pleasant Hill. Go to www.NoEwaste.com for acceptable items. 866-335-3373.
Looking to the stars
Stargazing 6-7 p.m. Jan. 14, Martinez Library, 740 Court St. All ages. Join Mt. Diablo Astronomical Society to look at Jupiter, stars. Meteorite samples. 925-646-9900.
Save money, the planet
Martinez 'Sustainable Citizen' workshop, 10 a.m.-noon Jan. 11, 525 Henrietta St. Learn to make sustainable practices part of life. Free. R.S.V.P.: SCrsvp@cityofmartinez.org, 925-372-3531.
16th annual Preschool and Parenting Fair 11 a.m.-2 p.m. Jan. 11, Pleasant Hill Senior Center, 233 Gregory Lane. Information on preschools in Martinez, Pleasant Hill, Concord. Free. Information: email@example.com.
Let's talk about it
Muslim Journeys discussion series: "When Asia Was the World" 6 p.m. Jan. 14, Pleasant Hill Senior Center, 233 Gregory Lane. Series on histories, faith, cultures of Muslims. Registration: ccclib.org, 925-927-3240.
Pleasant Hill CERT training 6 p.m. Jan. 13, 27; Feb. 3, 10, 24; March 3, Seventh-day Adventist Church, 800 Grayson Road, Pleasant Hill. Free. 925-288-4633, wwwpleasanthillcert.com.
Ham radio course
Polar Bear Plunge 11:30 a.m. Jan. 25, Pleasant Hill pool, 147 Gregory Lane. Start year with cold plunge into pool. Coffee, hot chocolate after. $20-$25. Register by Jan. 9 for T-shirt. 925-671-5270.
Help feed dogs, cats
ARF partners with Salvation Army for pet food drive 9 a.m.-5 p.m. weekdays, noon-5 p.m. weekends, through Jan. 10, 2890 Mitchell Drive, Walnut Creek. Help save animals in shelters. 925-256-1273.
Child choir auditions
Contra Costa Children's Chorus auditions 4 p.m. Jan. 8, Our Savior's Lutheran Church, 1035 Carol Lane, Lafayette. For youths 6-16. Appointment or questions: 925-945-7101, ext. 1, firstname.lastname@example.org.
Crab feed fundraiser
Grace Episcopal Church, 130 Muir Station Road, Martinez crab feed fundraiser Jan. 25. Social hour 5:30 p.m., dinner 6:30 p.m. Adults $45; 12 and under $8 (kid friendly food). Bring utensils, sauces. Reservations 925-383-8386.
Prom dress drive
Donate gently used prom dresses for Alhambra High juniors, seniors. Drop off 1875 Arnold Drive, Martinez. For pickup call, 925-787-3745. Sponsored by Martinez Soroptimist.
All about the garden
History of Ruth Bancroft Garden, uses of plants 10 a.m. Jan. 4, 1552 Bancroft Road, Walnut Creek. Garden history, plant medicinal uses, food sources, building materials. $20. 925-944-9352.
, 925 944-9352.