Northern Tool discounts a selection of welding tools and accessories, with prices starting at $3.59. (Click on the "Welding Sale" banner to see these deals.) Plus, take an extra $10 off orders of 50 or more via coupon code "254875" or an extra $20 off orders of $100 or more via coupon code "254876". Opt for in-store pickup where available to avoid shipping costs (which start at $5.99), or get free shipping on select items. (Eligible items are marked.) Coupons end October 17. A couple of best bets, each with free shipping: