Move the plants to a sunny spot first. You don't have to rearrange the whole room to do that -- just a little part of it. Hopefully you can just put them on the window sill or stick a table or chair in front of the window and put the plants on it?

I find that when I have a big task, like 'put the garden to bed,' I never get started because it is so overwhelming. If I make it a smaller task, like 'pick the tomatoes that are left and pull the plants,' then I can do that because it only takes 30 minutes or so.