For in-store pickup only, Sears offers the DieHard Portable Power 750 Jumpstarter with 12-volt Outlet and Light, model no. 71486, for $35.97. That's $9 under last month's mention and the best price we've seen. (It's also $25 under the best shipped price we could find elsewhere.) It puts out 750 peak amps and features a built-in light.
Of note, Shop Your Way Rewards members will earn a Sears credit with this purchase and may be eligible for additional credits and discounts.