How to clean a cage?

[Pipinha4822]

Hi, so I have some questions to make about cleaning cages. I know we aren't supposed to clean it fully every week, but instead do a full clean every month. But what about the sand? If it's possible to potty train the hamster, how do I clean the sand? And do I clean it (fully) every week? And when I do a full clean of it, where do I dump the sand? On the normal trash?

I don't know, and I would appreciate if anyone could help me out.
I don't have an hamster yet, cause I needed to talk to my landlord (here in Portugal many landlords, especially in houses related to a university city, do not allow animal in the house.) My landlord is asking me what will I do with the poop, and where will I dump the trash caused by the hamster. So that's why I'm asking, and also because I don't know what to do...