Painting high walls- . Any tips and/or suggestions on how to tape?

I am wanting to repaint my living room. It's really broken up but I think I have figured out which ones, lol. Any tips and/or suggestions on how to tape between ceiling and walls that are 20' high? This is why I have procrastinated so long. Do I need to rent all those ladders? I'm wanting to do this while everyone is gone so I won't have any assistance.

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