What are the options for a person (who cannot drive herself) to go to visit Niagara Falls?
From where will you be arriving?
I did this last September, taking a Greyhound bus from Cleveland and then connecting from Buffalo. I stayed at the Canadian side though, because the view is nicer!
Onwards to Toronto is quite easy and cheap, because you can use normal transport, the goTransit buses and trains!
Does that help a bit? :)