We could avoid a lot of rubbish, if we didn’t drink out of coffee-to-go paper or plastic coffee cups. They are not recyclable because they are made of plastic and/or paper which u cannot separate and recycle. Because of these two components they have to be burned, which is bad for our environment.
Now my suggestion is, that everybody who is 17+ (age is changeable) gets an stainless steel coffee cup or mug. This stainless steel cup can be used over and over again as opposed to a paper/plastic cup, which you throw away after using them once. These cups wouldn’t pollute the environment because they don’t break and if you eventually want to dispose of your cup you can recycle it.