Sears offers the Worx 10" 20-volt Lithium-Ion Cordless Grass Trimmer/Edger, model no. WG155, for $69.99 with free shipping. That's tied with last week's mention as the lowest total price we've seen. (It's also a current best by $5, although most retailers charge $101 or more.) 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.