We're finally to the really hot weather and this thread reminds me that I usually put out an ice-filled cooler with bottles of water for delivery folk. I'll get it out tonight and set it on the porch in the morning. Last year we had a long really hot stretch and I'd occasionally find a "thank you!" scribbled on the address label of a parcel or postal delivery. All last year I had a hand-washing station with water and soap and a plastic bucket on the porch, along with a roll of paper towels ("kitchen roll") hanging from my mailbox. They were used on occasion.