Rigid has a policy on its' power tools - as long as you own it it's guaranteed for life, to include batteries. I used to work at HD so I got a drill on sale. If the batteries go kaput, all I need to do is walk in, hand them the old battery and they give me a new one, no questions asked. Not sure what the deal will be if the drill itself goes south, either the same or a comparable model I expect.

Husky also guarantees for life their hand and air tools.

some of the karrimore rucsacks are guaranteed for life. their products are excellent in my experience.
The Sock

Surefire flashlights has a lifetime guarantee. Only had to use it once with a faulty switch. They sent me a new one no questions asked.

K&M Match Cases
Cabelas brand Clothing and Footwear

Silva denied my repair request of 3 Ranger Compasses about 4 months ago, they said they were too old to fix (about 25 - 30 years). I think I will send Brunton an e-mail and see what they say?

Leupold Gold Ring Riflescopes are guaranteed for life, I sent them a bent Vari-X III model with a letter that told them how I bent it, 10 days later a new, better version arrived at my door, no charge/postage paid.

Mike

Patagonia replaced a zipper on a fifteen year old fleece jacket - no questions, no charge, stating it was their policy to provide unconditional satisfaction. Their stuff is expensive to buy, cheap to use.

I've had the same, pleasant, experience with North Face. They replaced the zipper on my ~10 year old Gore-Tex parka and refitted a zipper to my wife's parka to fit their new style fleece liner, all for free.