Sears offers the Worx 10" 20-volt Lithium-Ion Cordless Grass Trimmer/Edger, model no. WG155, for $79.99 with free shipping. That's $10 below our July mention and the lowest total price we've seen. (It's a current best by $5.) It features an adjustable shaft, tilting head, and flower guard.

Of note, Shop Your Way Rewards members will earn a Sears credit with this purchase and may be eligible for additional credits and discounts.