Sears offers the Craftsman 12-Point Combination 12-Piece Wrench Set in Standard, model no. 47046, or Metric, model no. 47047, for $17.96. Opt for in-store pickup to avoid the $7.75 shipping charge. That's $2 below our April mention and the lowest total price we've seen. (It's a current low of $17.) The set includes 1/4" to 7/8" or 7mm to 18mm wrenches.
Of note, Shop Your Way Rewards members may be eligible for additional credits and discounts.