eBay has the August Bluetooth Keyless Home Entry Smart Lock (Dark Grey or Silver) for $95 with free shipping. Retail price: $400. Compatible with most standard deadbolts, and works with most Bluetooth-enabled devices to sense your approach and unlock automatically.
Walmart has the Niagara Conservation Kitchen Faucet Aerator (Brushed Nickel) for $4.88 with free in-store pickup or $5.99 shipping to home. List price: $11. Features dual threaded to fit most male and female faucets, 360-degree swivel, also features a pause action valve that reduces flow to a trickle while keeping temperature consistent.
Amazon has the Best Choice Products 4 Tier Mini Green House (SKY2533) for $23 with free shipping on $25+. Retail price: $80. Equipped with powder-coated steel bars and a polyethylene plastic cover that will make this product last through the seasons.
Has good Amazon Reviews.