Kmart cuts 50% off a selection of Valvoline wiper blades, with prices starting at $3.24. Plus, Shop Your Way Max members bag free shipping on most items. (Not a member? It's free to sign up for a 90-day trial; otherwise, shipping starts at $5.99. In-store pickup is also available.) That's tied with our November mention as a strong sale on Valvoline wiper blades from Kmart, yielding several price lows. (For further comparison, we saw a BOGO offer on these items in December.) A couple of best bets: