You cannot paint the walls and you should not drill the tiles. Everything below is reversible, which is the only rule that matters in a rented room.
Fix the smell before the furniture
Scent is the fastest change in any room and the cheapest to undo. A candle does the evening; a linen spray does the other twenty-two hours. Between them they cover most of what makes a room feel like someone else’s.
Then the light, then the surfaces
Two lamps beat one ceiling light in every room ever built. After that, give every flat surface a job, and keep one of them empty on purpose.
Scan for the home edit
The same edit runs in the print insert. Scanning the code opens the candle page and tells us the print run sent you.