Playtime has returned to Napaâs downtown fairground. On Wednesday, the Napa Valley Expo reintroduced visitors to the familiar sights, sounds, and scents of merry-go-rounds, funnel cakes, and midway games â the carnival experience that was canceled along with so much else when the coronavirus pandemic struck more than a year ago. Billed by its organizer as the Greatest Portable Theme Park, the five-day fun and food fair marks an early step back toward everyday summertime entertainment, barely a week after California relaxed most of the remaining rules on home sheltering and social di...