IT’S OLD HAT BY NOW—Seattle voters passed Initiative 502 in 2012, permitting the growth, manufacture, sale, possession, and use of recreational marijuana. It’s hard to even remember a time when neighbors hid their mushroom clouds of smoke above their patios. Pot stores aren’t just open, they’ve specialized into high-end boutiques or cross-city chains. New to legal weed? Here’s what you need to know: Those shops, some 50 in Seattle, won’t let you in without ID to prove you’re at least 21. You can buy up to an ounce of marijuana in flower form, 16 ounces of marijuana edibles (cookies, brownies, gummies), and 72 ounces of marijuana-infused extracts. You can’t take your booty across state lines. You can’t legally use it in public (fines start at $27, though most cops will let you off with a warning). And you can’t judge your neighbors anymore.