Retail Rebound via Amazon offers Prime members the Black & Decker 4-volt Max Cordless Screwdriver, model no. BDCS40G, for $16.69 with free shipping. (Non-members can spend over $35 for free shipping; otherwise, shipping adds $5.67.) That's the lowest total price we could find by $6, although most stores charge closer to $40. (However, it was $2 less last summer.) It features gyroscopic technology for increased control and an LED light, and includes a charger and two 1" screw bits.