Nearly all remodeling and household debris can go in your container. Colorado law and the landfill set the limits.
Electronics are the big one. Boulder County explains that Colorado's Electronic Recycling Jobs Act has banned throwing away electronic devices since July 1, 2013. That covers TVs, computer monitors, printers, laptops, tablets, DVD players, and any device with a screen larger than four inches.
Hazardous waste stays out as well. Paint, solvents, pesticides, fuel, and anything marked flammable, corrosive, or toxic needs special disposal. Liquids, pressurized tanks, tires, and asbestos can't go in a standard dumpster either.
Boulder County runs a Hazardous Materials Management Facility at 1901 63rd Street in Boulder, open Wednesday through Saturday, 8:30 a.m. to 4 p.m. It sets a 400 pound daily limit, and Longmont also holds its own hazardous waste collection events. Call the facility at 720-564-2251 to check whether your household qualifies.
If you're unsure about an item, ask your account manager before it goes in.