1F Visitors to Designer Charles Krewson’s tiny studio apartment on Manhattan’s East Side seem to spend an inordinate length of time in his bathroom, the reason has nothing to do with overzealous hygiene. “People’s eyes used to glaze over when I asked them if they’d like to see my collection of antique photographs,” he says, referring to the dozens of amusing prints he recently pinned to the bathroom’s cheerful egg-yolk-yellow walls. “But when they see them on the wall, they’re intrigued.”