Sadly this is something that no doubt we all come across from time to time and we all find different ways to deal with it. It also helps that we are all our own boss's and can decide to take the hit or not. It was a nice gesture and no doubt an emotional one.
I have a street where everybody grew up together and sadly they are getting to an age where death is creeping in. However, one old dear lost her daughter last year due to an unfortunate accident and 2 months ago, the night before I cleaned her windows, she lost her only remaining daughter due to ill health. That night she took it bad and ended up in hospital herself. Its never easy losing a child but both before you die,,,,,,,,,,,parents aren't meant to outlive their kids.
A card through the door and a free clean doesnt seem to "cut it" but with an added cuddle on the next clean, it was appreciated