TODAY ONLY (I'm assuming through midnight tonight but don't wait if you're interested), all Sally Hansen Triple Shine nail colors are 40% off on the Walgreens site and you get FREE SHIPPING on all orders (no minimum order required). You can CLICK HERE to go directly to the Walgreens site, and you'll see that the prices on the Triple Shines have already been adjusted to $2.99 each (down from $5.29).
I tested this offer by putting just one bottle in my cart and sure enough, shipping was FREE. PS: Walgreens takes PayPal, in case you were wondering.
Thanks again, Stephanie, for the awesome tip!