When in doubt, and indeed, when you can only muster enough strength to pull on a pair of loose pants and head to the shops, do a Gwen Stefani: whip on a pair of glamorous black sunglasses and swipe on some red lippie. Sure, Gwen has her hair done, but if yours hasn't recently fallen out of a set of rollers like hers has, a neat ponytail will do just as well. Then you can wear whatever you like and nobody will be the wiser.