Orange Blossom Special Windowshade ($75)

It's a window treatment, but it's also art: an original illustration by Addie Gartland, custom-printed and sized to your window. Get yours at Drink And Dream.

Bicolor Silk Dupioni Window Panel ($50-$60)

Reg $69-$99. Pricing depends on length, of course. Something about the way light reflects off this fabric is so glamorous, and the shades of blue are vibrant but very grown up. From West Elm.

Bird + Birdcages Sheer Curtains ($34-$69)

Much cuter than ordinary sheer curtains, and sophisticated enough for grown-ups, even if you did buy them from PBTeen.

Grosgrain Ribbon Sheer Shade ($20-$35)

For dreamy windows that are princessy but not too princessy. Originally $39-$69. From Pottery Barn.

Opaque Linen Curtains ($15-$30)

Originally ranging from $44 to $64, the linen panels come in three different colors and lengths.

Morocco Roman Shade ($25-$30)

Available for $25 (originally $54) for 32" wide in white and espresso, and for $30 (originally $59) for 36" wide in white. All shades are 65" long.