Simple block trim, or gorgeous detailed pieces, trim comes in wood, composite, and instantly useable vinyl. We use it for crown mouldings, chair rails, and baseboards. But have you considered framing out otherwise plain windows? Make basic frames to surround wall-hangings, or place trim around built-in architectural features in your home.
Go with a basic clean trim to soften up a modern look but keep the feel clean-lined, or enhance elegance with wide or intricate detail on your trim. Additionally, try stacking a second piece of trim on top of wide baseboard to create a stunning bolder look.