So this is embarrassing. My cleaning woman makes quarterly trips to Costco to buy cleaning products and other stuff like laundry soap for me at a great discount. She just buys what she needs which is fine with me. Today she arrived and handed me a receipt... I glanced at it and saw $90 and change... so I gave her $100 in cash, thinking I was giving her an extra ten dollars just for her trouble and time (and her lugging all the stuff in...)
She resisted, and I insisted.
After she left, I looked at the receipt again, and yes $90 was on there, but it was a sub-total... with New York State 8.25% sales tax... the total was $98.26 cents... Yes, I was Lady Bountiful giving her $1.74 tip. Oh well, my heart was in the right place.