What do weddings, date nights and bedtime all have in common? You can wear a lace slip-dress on any of these occasions and fit right in. Though the lace slip-dress really comes into its own during party season, this wardrobe staple has seen us through more than one wedding, and some of us have even styled ours with modest layers in the office once or twice. Celebrities have been opting for elevated slip-dresses for many years, choosing the style to see them through red-carpet events and Fashion Week shows time after time.