Once we get to our destination, what do we do with the train ticket? We can place it in the paper and cardboard trash can as its recyclable    

A plastic bag is NOT welcomed in a paper container. If you use the paper bag to collect paper and cardboard to throw away, remembered to separate the two and throw the plastic bag in the plastic bin.  

Where do you throw sticky notes? Those that you use to remember what to buy at the groceries store, or urgencies you have in the office? You put it with the with paper and cardboard! The glue used is in fact soluble in water.  

You just finished eating your muffin and have to throw away its mold or paper cover? Well in case that they are clean they can be thrown in the paper pin. Instead, if they still have residue of food and the mold is indicated as being compostable, you can place it in the organic bin. &...

It would be nice to never need it ... Anyway, after you use it, what do you do with the prescription? Where do you throw it? No panic: it can go with paper and cardboard!  

One pastry leads to another, you know. And what remains is only the pastry tray, which always puts you in a crisis because you don't know where to throw it. So what?? And so it goes with paper and cardboard!    

It doesn't matter if they have ink or barcodes - throw them away with paper and cardboard!