Trim Is the Single Easiest Way to Upgrade Your Decor

When it comes to good design, the details matter. Proof? One of the biggest ways professional designers add an extra custom touch is also one of the smallest: with passementerie, aka trim. Generally speaking, this can refer to a broad range of pieces designed for the edges and corners of fabric—think woven, lace, or tape trim, roping, and even tassels. For many designers, a curtain or upholstered furniture piece isn't complete without a bit of trim. And they use it on everything from tablecloths to lampshades. Consider it the designer's ultimate secret weapon. Here, some trusted experts share their favorite uses to inspire your next DIY project.