Instead of buying the bottled stuff, try making your own at home
Especially if your dress or skirt is above the knee, black tights will definitely look fall/winter-appropriate for work
Beautiful, timeless, and simple
I have found it actually isn't really dependent on sewing skills or even expensive materials, but the ones I like best interpret the "lines" of the original pieces in ways that I find both reminiscent of my favorite elements of the original, and in ways that complement the current wearer's form
Chiffon creates a soft, flowing look suited to garden, beach and outdoor weddings, while stretch satin gives blue bridesmaid gowns a smoother, more polished finish for formal ceremonies and evening receptions