Hope you held onto those Donnie Wahlberg posters: Another decade from the past has become all cool and retro, and this time, it's the 1990s (la vida loca?). Eighties nostalgia is so 10 years ago. It seems like everyone has jumped in on the craze. MTV brought back Beavis and Butt-head and—get this—music videos. The Backstreet Boys and New Kids On the Block got back together to perform for swarms of once-tweens (Justin who?). Newt Gingrich has considered a presidential run. Teen witches replaced teen vampires. Christina Applegate is still hot. It's easy, we suppose, to long for the days when the now-legal, pouty Olsen twins chirped adorable one-liners ("You got it, dude!"), and the only terrorists we worried about were dinosaurs destroying theme parks. Yes, we love the '90s! Now, if only we can bring back the Clinton-era economy and Metropolis in Irvine. . . .