Recycle: Remember what items go into the recycling bin and recycle properly. In Omaha, these items can be placed in the recycling bin: paper, cardboard, clean cartons, clean aluminum, and steel cans, clean plastic bottles and containers. Look for the numbers in the recycling symbol stamped in the plastic and only put 1,2,3, and 5 numbered. Cardboard is a form of paper that can be reused to make a number of products, mostly more cardboard. Please make sure the cardboard you put in your recycling container isn’t contaminated by food, liquid, or waste. Here are some examples of types of cardboard you can recycle: Moving boxes. Food boxes. Shipping boxes. DO NOT place glass in a green-lid, curbside recycling cart. Take accepted glass items to a PURPLE container at one of the City's drop-off recycling sites. Learn More Hefty® EnergyBag® Use the orange-bag program for hard-to-recycle plastics & packaging, such as candy wrappers, chip bags, toothpaste tubes, & more. Learn More How to Prep Yardwaste.