20-count BIC Soleil Smooth Colors Disposable 3-Blade Razors $10 at Amazon
Amazon has the 20-count BIC Soleil Smooth Colors Disposable 3-Blade Razors on sale for $13 - 5% off with Subscribe & Save (can cancel at any time) - 15% off coupon (check “Save an extra” box, eligible on first S&S order for this product) =
$10.42 with free shipping on $25+ or with Prime.
About 52 cents per razor.
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