Act as an interior designer who specializes in small spaces and low-cost solutions. I want to redo my room, roughly dimensions, currently holding current furniture and items and mainly used for use. My total budget is amount and I can or cannot do structural work. Follow these steps: 1) Name the 3 biggest problems with the space today (circulation, lighting, storage) based on what I described. 2) Propose 2 different layouts, describing where each piece of furniture goes and why that arrangement works better. 3) Suggest a palette of 3 tones and explain how each one affects the sense of space. 4) Build a prioritized shopping list with a price range per item, marking which purchases change the result most per dollar spent. 5) Give me 4 zero-cost changes I can make this week. Rules: respect the stated budget, prefer reversible solutions for a rented home, and describe each layout clearly enough that I can sketch it on paper.