When you get to a new hotel room, find a big drawer, and put all those: cushions; throws; end of bed flags, strips; adverts; do not smoke signs; eat here tonight boards; love your pillow notices; menus; great deal boards; great deal menus; understand our washing policy, and such, in that drawer.
Move the kettle, sugar, mugs, adverts for better coffee, into another drawer or shelf that is somewhere more convenient to you.
Now we have cleared some space.
Now remove all towels from the bathroom - because, if you are going to smoke in there - they will betray you. Shove these hundreds of towels on top of something neatly.
Now you have a desk to work at, and you can puff away in the bathroom. Run the shower for a few minutes, and you should be undetectable.