With orders of $25 or more, Amazon cuts an extra $3 off select Gillette Men's Razors via this clippable coupon. Plus, Prime members bag free shipping. (Non-members can spend $35 to qualify for free shipping; otherwise, shipping starts at around $5.) That puts each at least a couple of bucks less than what you'd pay at a local store.

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Some best bets:
-- Gillette Mach3 Sensitive Power Razor for $2.99 (pictured, $3 less than Walmart)
-- Gillette Fusion Proglide Silvertouch Men's Razor for $6.99 ($5 less than Walmart)

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