Amazon offers the Whetstone All-in-One Stainless Steel Golfer's Tool
for $9.99. Clip the 25% off
coupon on the product page to cut it to $7.49
. Plus, Amazon Prime members snag free shipping
. (Non-members can spend $35 to qualify for free shipping; otherwise, it costs $6.75.) That's the lowest total price we could find by $5. It features a knife, magnetic ball marker, pen, ball cleaning brush, club cleaner, divot repair, cleat tightener, and key ring.