Break a project into a first step you can do today

Here's something I've been putting off:

I want to turn the spare room into somewhere I can actually work, it's full of boxes from the move and there's no desk and the wifi doesn't reach

Done looks like: I can shut the door and work in there for a full day without going downstairs
Why I haven't started: every time I go in there I don't know what to pick up first
Time I have today: an hour

Give me one first step. Just one.

It has to be something I can finish today in an hour, using only things I already have. If your first step needs me to buy something, measure something or decide something big, it's the wrong step. Pick an easier one.

Then:
1. The step, in one sentence, starting with a verb.
2. How I'll know it's done, so I can stop.
3. The next three steps after it, one line each, so I can see the shape. Don't expand them.
4. The part of this project that's genuinely hard, named plainly. Not the boxes. The bit I'm actually avoiding.

Keep it under half a page. No encouragement, no preamble.

What you get: One job you can finish tonight, plus a name for the bit you're really avoiding.