First, choosing blinds or shades can be a budget-friendly option as they usually cost less than custom curtains and drapes. Secondly, reducing the number of windows to be dressed or using more expensive treatments selectively for key windows can minimize the overall cost. Lastly, if you're considering a more decorative element like curtains or drapes, opting for valances could be a cost-efficient alternative since they cover only the top half of the window and require less material and installation work.