Wal-Mart has it for $17.87. Add $.97 s/h if ordered online.
Overstock.com has it for $17.49, but then adds $3 bucks s/h.
Amazon has it for $17.99 with free shipping if you add another $7 bucks to the cart AND they toss in a $5 dollar coupon code good on a $20 dollar or greater Amazon purchase through the end of August.
It looks like Amazon has the best deal, assuming that there's something costing $7 bucks at Amazon that you'd like to buy. Has anyone seen better?