Amazon has the First Alert CO410 Carbon Monoxide Detector Alarm for $24 with free shipping on $25+. Features 85 decibel alarm, test & silence button, 2 AA batteries required (not included).
Has good Amazon Reviews.
Amazon has the Coolaroo Aurora 9'8" x 9'8" Pergola (454616; Smoke) for $242 with free shipping. List price:$494. Features weather resistant Coolaroo knitted fabric, modern color and design for contemporary look, semi-permanent, free-standing pergola.
Walmart has the Backyard Discovery Timberlake Cedar Wooden Playhouse (65314) for $139 with free shipping. List price: $200. Features wide windows, flower pots, play accessories (including a sink, stove, and cordless phone). It measures 42" x 46" x 56".
Walmart has the Mighty Mule 3/4-HP DC Garage Door Opener (MM9333H) for $136.09 - $2.08 off with in-store pickup discount = $134 with free shipping. List price: $220. Features LED light, steel-reinforced belt drive, two 3-button remotes, wireless keypad, and safety sensors, smartphone compatible (requires Mighty Mule Smart Wall Station?, sold separately).