Walmart takes up to 45% off a selection of tools. Choose in-store pickup to avoid the $5.99 shipping fee, or get free shipping with orders of $35 or more. A couple of best bets:
Hyper Tough 53-Piece Home Repair Tool Set for $19.97 (pictured, low by $15)
Black + Decker 20V Max Lithium-Ion Cordless Drill w/ 2 Batteries for $49.88 (low by $14)
Note: These orders won't be ready for pickup before Christmas.
You very likely are putting your laptop battery into an early grave.