Many stores, including CVS, sell Wet N Wild products for only 99 cents. I snapped a photo of the polishes that start at that price. If you have the coupon, that means free polish.
$.99 — Wet N Wild polish
$.99 — $1 Wet N Wild polish coupon adjusted down
Total after coupons: FREE, for a total savings of 100%.
Plus, everyone seems to be getting a $4 off $12 cosmetics purchase coupon, so this could turn into an even better deal.