• The Rotary Club of Oro Valley meets. Details: 7 a.m.; Oro Valley Country Club, 300 W. Greenock Dr.; Loriand@dakotacom.net.

• The YWCA holds its 95th Anniversary Breakfast. Details: 8 a.m.; Frances McClelland Leadership Center, 525 N. Bonita Ave.; 884-7810 ext. 104.

• The Marana Chamber of Commerce holds its Monthly Luncheon. Details: 11:15 a.m.-1 p.m.; Heritage Highlands at Dove Mountain, 4949 W. Heritage Club Blvd.; $30, $25 members; 682-4314.

• The Rotary Club of SaddleBrooke meets for lunch and a short program. Details: 11:30 a.m.; SaddleBrooke Country Club, 64485 E. SaddleBrooke Blvd.; $15; agbw@msn.com.

• The Greater Oro Valley Chamber of Commerce holds its Monthly Mixer. Details: 5-7 p.m.; Mountain View Retirement Village, 7900 N. La Cañada Dr.; $10, $5 members; 297-2191.

Friday, May 18

• The Joel D. Valdez Main Library offers Beyond the Bake Sale: Special Event Planning for Your Group or Organization. Details: 9 a.m.-noon; 101 N. Stone Ave.; free but registration required; 791-4010.

Saturday, May 19

• The Joel D. Valdez Main Library offers the Information Power for Small Business Workshop. Details: 10:15-11:45 a.m.; 101 N. Stone Ave.; free but registration required; 791-4010.

• The Marana Chamber of Commerce holds an Open House for the S.A.F.E Project on Pool Safety. Details: Cantera Apartments, 3500 W. Orange Grove Rd.; 682-4314.

Monday, May 21

• Career Services Unlimited offers Individual Job Counseling. Details: noon-3 p.m.; Joel D. Valdez Main Library, 101 N. Stone Ave.; free; 791-4010.

Tuesday, May 22

• The Rotary Club of Marana meets. Details: 7 a.m.; Nana’s Kitchen, 8225 N. Courtney Page Way; 395-2508 or www.maranarotary.org.

• Business Network International (BNI) Peak Performers meet. Details: 11:30 a.m.-1 p.m.; Acacia Restaurant, 3001 E. Skyline Dr.; $13.50; 465-1174.

• The Joel D. Valdez Main Library offers Understanding Collaboration for non-profit leaders. Details: 3:30-5:30 p.m.; 101 N. Stone Ave.; free but registration required; 791-4010.

• The Marana Chamber of Commerce holds its Fourth Tuesday Mixer. Details: 5:30-7:30 p.m.; Colt’s Taste of Texas, 8310 N. Thornydale Rd.; free; 682-4314.

Wednesday, May 23

• The Marana Chamber of Commerce holds a Legislative & Economic Development Briefing. Details: 7:30-9 a.m.; Marana Operations Center, 5100 W. Ina Rd.; 628-4314.

• The Oro Valley Optimist Club meets. Details: 11:30 a.m.-1 p.m.; The Loop Restaurant, 10180 N. Oracle Rd.; kathicuvelier@gmail.com.