Plastic Lids Landfill (Trash) Cart Hard plastic caps are accepted for recycling only when attached to the plastic bottles/containers that they came on. Loose plastic caps and other plastic lids (like the drink cup lid pictured) go in the landfill cart, since they are too small to be captured in the recycling sorting process. Ways to Reduce Bring Your Own Cup Carry a travel mug or water bottle instead of using disposable coffee cups or plastic cups. Ways to Reuse Repurpose Plastic Lids Plastic lids can be repurposed as soap trays, party coasters and more. Check out this list for inspiration.