Ensure the fit suits the window shape. Floor-length drapes look great on taller windows, but can dwarf smaller ones. If you’re looking to make windows seem taller, hang the curtain rod a couple of inches above the top of the window. Additionally, if you choose floor-length drapes for your longer windows, be sure they just barely graze the floor. There is nothing attractive about curtains that pile up on the floor like old laundry.
Lastly, don’t be afraid to mix and match. If you have a room with floor-length windows or glass doors as well as a standard sized window or two, it’s okay to have different styles of treatments. For example, some homeowners may choose elegant drapes for the larger windows and simple Roman shades for the others. It’s okay to change up the style so long as the fabrics match.