A one-day self-defense class for women will be held from 12 to 1:30 p.m. at Ultimate Self Defense, 488 17th St. #B101, Costa Mesa. The class will be geared toward women ages 14 and older of all athletic abilities. The cost is $20 per person. For more information, call (949) 650-8636.
Free Assisted Living Workshop
Newport Beach Plaza Retirement Community is having a workshop, "Creative Ways to Pay for Assisted Living" for veterans and surviving spouses of a veteran from 1 to 2:30 p.m. at Newport Beach Plaza, 1455 Superior Ave. Call (949) 645-6833 to RSVP.
Battle of the Harmonicas
Four unsigned blues harmonica bands will vie for cash awards and the opportunity to perform as the opening act at the 22nd annual Battle of the Blues Harps from 12 to 4 p.m. at the Costa Mesa Fairgrounds. Admission to the finals is free with a canned food donation to benefit the Second Harvest Food Bank of Orange County and includes the swap meet. Regular admission is $2 and free for children 12 and younger.