Lowe's offers the Black & Decker 20-Volt 12" Straight Cordless String Trimmer and Edger, model no. LST420, for $99. Coupon code "470000RRRR2997R" cuts it to $89. With free shipping, that's the lowest total price we could find by $10. It features PowerDrive transmission, dual-mode accelerator switch, automatic feed spool, and two battery packs.