The clearance polishes are any of the bottles with the big red sticker on it. At Sally's, they are usually found at the bottom of the polish shelves at the front of the store, on the shelves by the nail supplies (files, remover, top coats, etc) or in the way back of the store.
Clearance stock varies from store to store, so I suggest hitting up your local Sally's as soon as possible! The deal ends on Monday, May 19.
I lucked out and decided to try a remote Sally's Beauty store that I didn't believe that many people frequented. I hit a jackpot of a huge rack of clearance China Glaze, and decided to choose some of the textured polishes that I wasn't very interested in when they first came out. (And you all know my opinion about textured polishes...)
I nabbed "Teal the Tide Turns" from the 2014 Sea Goddess collection, "Wrinkling the Sheets" from the 2014 Crinkled Chrome collection, and "Boo-gie Down" from the 2013 Halloween collection.... all for $3.29!!!
Just show the advertisement picture when you're ready to check out, and the cashier will enter the discount code for your deal. It is limited to 1 per customer during your visit, so make your choices count!
Swatches of the two polishes are after the jump: