With orders of $25 or more, Amazon offers a selection of New Era NFL, MLB, NCAA, and NBA Team Baseball Caps, with prices starting from $2.38. (Prices are as marked.) Plus, Amazon Prime members bag free shipping. (Non-members can spend $35 to qualify for free shipping.) That puts many items as much as 87% off and at the lowest total price we could find. Choose from a range of styles and teams.

Note that most of these items are part of Amazon's "Add-on program" and can only be purchased with an order of $25 or more.