An extra tip in bad weather is appreciated
If it’s raining or snowing or hailing or super windy, give your delivery driver an extra tip. It was not easy for her to get to you. She doesn’t want to be out in that weather any more than you do. And also, if you need a few minutes to find your money or something, don’t leave your driver standing out in the rain. Offer her to step inside and stay dry for a moment.