Thursday, Dec. 9
• The Rotary Club of Oro Valley meets. Details: 7 a.m., Oro Valley Country Club, 300 W. Greenock Dr.; Loriand@dakotacom.net.
• The Northern Pima County Chamber of Commerce holds its holiday luncheon. Details: 12-1:30 p.m.; Westin La Paloma, 3800 E. Sunrise Dr.; $45, $35 members, 297-2191.
• The Desert Kiwanis Club meets. Details: 12-1:30 p.m.; Village Inn, 6251 N. Oracle Rd.; firstname.lastname@example.org.
• The Marana Chamber of Commerce holds a networking mixer. Details: 5-7 p.m.; Solara by Meritage Homes, 12143 W. Formosa Lane; free; 682-4314.
Friday, Dec. 10
• The Marana Chamber of Commerce holds Marana Chamber 101. Details: 7:30-9 a.m.; Marana Operations Center, 5100 W. Ina Rd.; free; 682-4314.
Saturday, Dec. 11
• The Town of Marana and the Marana Chamber of Commerce hold Marana Car Care Day. Details: 8 a.m.-12 p.m.; Marana Operations Center, 5100 W. Ina Rd.; free; 682-4314.
• The Arizona Mystery Writers hold their annual Christmas Mystery Workshop with guest speaker Karen McLeish. Details: 10 a.m.-2 p.m.; Home Town Buffet, 5101 N. Oracle Rd.; $17.50, $12.50 members; 577-7270.
• Tucson Metropolitan Ministries offers a class, “Managing and Maintaining Your Home.” Details: 9:30 a.m.-12:30 p.m.; TMM Family Services, 1550 N. Country Club Rd., Bldg 8; free; 322-9557.
• Wells Fargo Home Mortgage offers a homebuyer workshop. Details: 11 a.m.; 6831 N. Oracle Rd.; free; 304-1229.
Tuesday, Dec. 14
• The National Association of Women Business Owners holds the Greater Tucson 15th Anniversary Crystal Celebration Holiday Auction. Details: 10:30 a.m.-1:30 p.m.; Manning House, 450 W. Paseo Redondo; $50, $40 in advance, $30 members in advance; http://www.nawbotucson.org">www.nawbotucson.org.
• Score Business Counseling offers one-on-one counseling to small business owners or to anyone contemplating starting a new business. Details: 3-5 p.m.; Oro Valley Public Library Study Room, 1305 W. Naranja Dr.; free; 229-5300.
Wednesday, Dec. 15
• The Kiwanis Club of Oro Valley meets. Details: 7 a.m.; Holiday Inn Express, 10150 N. Oracle Rd.
Thursday, Dec. 16
• The Northern Pima County Chamber of Commerce holds a holiday breakfast. Details: 7-8:30 a.m.; Hilton El Conquistador, 10000 N. Oracle Rd.; $30, $20 members; 297-2191.
• The Marana Chamber of Commerce holds a holiday party. Details: 5:30-8:30 p.m.; Omni Tucson National, 2727 W. Club Dr.; $45, $80/couple; 682-4314.