High-impact, budget-friendly bedroom decor ideas include painting thrifted furniture in soft warm neutrals to unify pieces, styling walls with a small gallery of thrifted oil paintings spaced two to three inches apart, and layering multiple light sources with rescued lamps. Use shelf styling tricks like grouping vintage collections and adding plants to enhance personality. Incorporate textiles like thrifted rugs or curtains in muted tones. These economical DIY moves refresh your room dramatically and build an eclectic vintage style slowly but surely.