Painting the stairwell

When we bought our house in 1999, we bought it off a couple who bought up old houses to renovate and flip.  We are eternally grateful to them for giving it a new roof (still going strong) and all new double-glazed windows (likewise) but they also painted the whole place with super-cheap white paint.  We quickly painted all the downstairs rooms, and did Thomas's rooms in sky blue and grass green (since replaced) but never bothered with our room or the landing/stairwell.  We fixed the former a couple of months ago and liked the creamy color we chose so much that we have finally come to the stairwell.  Here is me struggling to reach the really tricky high parts.

Or something.