Voting in a provincial election seems to be a tricky thing, if you have no fixed address.
In a federal election, someone can vouch for you as a being a resident in a particular riding. In a provincial election in Ontario, you need paperwork showing an address – something I do not have yet, as my apartment search continues.
The election authority suggested trying to get a letter from the human resources people at work, but I doubt that will be possible before Thursday’s election.