I remembered, while organizing my apartment, that I have a very small dolly/cart, folded up and put away.
And that I have a storage unit in the building's basement.
And that there are some cartons to be left unopened, in the apartment, that belong in the basement storage unit.
So I just finished wheeling the four cartons on the cart down to the storage unit.
There are other cartons, including two with file folders in them, still in the apartment.
But I am doing this a little bit at a time, just as I was when I first moved in a few months ago.