In an endeavour to reduce my soft plastic use I have invested in these reusable and recyclable plastic lids to cover cans.
By popping a lid on a partly used food can I am able to store the remaining contents in the fridge without using cling film or an extra food storage container.
They clean easily with a soapy cloth so no need to chuck them in the diswaher. I even use them to transport leftover tuna and soup, in the can, from home to office for that mid arvo left overs snack.
Unused soup and curry pastes last longer:
Also great for pet food cans.
Here are some more equipment reviews and kitchen kit: