Harbor Freight - what happened to the 20% off coupons

I have a HF engine crane at least 30 years old that still works and when I had my shop years ago you could get a lifetime warranty on tools. I could buy die grinders for $20 and good ones cost $240. I bought 20 of them and about every 2 months I would return the wore out ones and exchange for new. That worked out real good over the years.