Cohousing informational session to be held at the Colorado Springs Cohousing construction site at 531 E. Columbia Street. Followed by a tour of the homes under construction. Please wear closed-toe shoes. Sun., Sept. 8, 1 p.m. and 2 p.m. For more, call 471-6611 or visit www.ColoSpringsCohousing.com
Household Chemical Waste Collection Program at the Penrose Equestrian Center, 1045 W. Rio Grande St. Access to drop-off site will be from 21st street only and east on Rio Grande. Seniors only (55 and older): Fri, Sept. 6, 1-3:30 p.m., All residents: Sat., Sept. 7, 8:30 a.m. to 3:30 p.m. Business waste not accepted. Households are limited to 50 pounds of solid waste, 5 gallons of liquid waste and 4 tires (no rims). Volunteers needed. Call 520-7878 for more.
Campaign Reform Initiative Fundraising Party in support of Amendment 27 at Jack Quinns, 21 S. Tejon St.
www.voteyes27.org. Tuesday, Sept. 17, 5 p.m.