Walmart discounts a selection of garage and storage rollbacks, with prices starting from $12.70. Choose in-store pickup to avoid the $5.99 shipping fee, or get free shipping on orders of $35 or more. (Oversized items may have additional fees.) A couple of best bets:
SystemBuild Apollo Wall Cabinet for $39 (low by $9)
Muscle Rack 48x48" Adjustable Ceiling Shelving Unit for $54 (pictured, low by $18)
I'm a millionaire several times over. I got here the same way you can -- by following these 10 simple steps.