Seriously? Seriously.BUYAmenity Home Sample SaleWhat: Duvets, pillows, baby bedding, and more from the organic linens line at up to 70 percent off retail. Why: Cozy up to one-of-a-kind production samples ($50-$150), too. When: Thurs., 6-10 p.m.; Fri., 10 a.m.-7 p.m.; Sat., 10 a.m.-4 p.m.Where: 453 S. Spring St., b/t Fourth & Fifth Sts., Downtown (213-624-7309).In with the Old, Out with the NewWhat: Pilfer the racks of ten indie vintage boutiques under one gallery roof.Why: Nothing over $200 and most under $75. When: Sat., 1-4 p.m.Where: HVW8 Gallery, 661 N. Spaulding Ave., b/t Melrose Ave. & Clinton St., West Hollywood (323-655-4898).SAVEPlastic Island/McGinn Warehouse Sale What: Samples and overstock from both collections priced 50-80 percent off retail (now $30-$400; reg. $150-$800). Why: Last season’s leather jackets and right-now party dresses for the taking.When: Fri., 8:30 a.m.-4 p.m.; Sat., 9 a.m.-3 p.m.Where: 1385 E. 15th St., at Central Ave., Downtown (213-749-0900).TREKTemescal Canyon Association Hikes What: Follow your guide on a pretty, nine-mile adventure through Hondo Canyon to reach the view at Saddle Peak. Why: Think ashram. Without the ashram part. When: Sun., Meet at 8:45 a.m. Where: Temescal Gateway Park, 15601 Sunset Blvd., at Temescal Canyon Rd., Malibu.DECK THE HALLSHoliday Decorations That Jingle Your BellWhat: Spruce up your digs with a made-to-order garland, snowflake mobile, 3-D paper mistletoe ball, or Charlie Brown Christmas tree.Why: No one likes a Grinch.When: Before the first snowfall.Where: Online at dailycandy.com.KAWAII Small Gift OpensWhat: Hello Kitty and the Sanrio crew pull out all the stops — an arcade, miniature golf, Ferris wheel, food truck court, pop-up shop, classes, and a gallery of 50 artists’ original work — with a ten-day party for their 50th birthday.Why: Ride Saturday morning’s sushi-bento-box-workshop ($25) wave straight to the I Heart Nerds party ($15). When: Nov. 12-21. Schedule online at sanrio.com.Where: Barker Hangar, 3021 Airport Ave., b/t S. Bundy Dr. & Walgrove Ave., Santa Monica. Tickets online at brownpapertickets.com.EATI Heart Pies What: Meet, greet, and eat fall flavors — apple crumb, peanut butter s’mores, pecan, chocolate mousse, and pumpkin — from the new local pie purveyor. Why: Order for Thanksgiving or take a large or mini home right there on the spot. When: Sat., noon-5 p.m.Where: Plastica, 8405 W. Third St., b/t Orlando & Croft Aves., Mid-City West (323-655-1051).Photo: Courtesy of Amenity Home Up to 50% off WilsterComfy eveningwear becomes a reality in Wilster’s jersey dresses with sequins, lace, and sexy drapes. Since they’re up to 50% off on Swirl, you’ll be scheming ways to style them for day, too.