I was at Discount Tire yesterday, had a nail in a tire. They were busy, but fixed it in about 30 minutes, no charge. I asked the young man who worked on it if they had a tip jar. He said yes, and I gave him a $20. It was well worth it to me.
Yeah. It's good to let the guys busting their asses know that people appreciate them. I still say the tip jar is bogus. Give it directly to the person who earned it.