I can't afford to have an internet connection at home. Is there any way of figuring out what update I need for my system so that I can download the same onto my USB stick from the office internet connection, take it home and then update my system with the USB stick.

EDIT: I'm using windows 7 in the office which is connected to the internet and I need to download all the updates that are needed for the proper functioning of my Linux mint system at home.