Well, mixing this with the Heatwave thread, I'm just working slightly shorter days and concentrating on getting through the work. I had a month off in May and now I have to catch up - there are worse problems I know. Plenty of fluids, factor 50 and keeping covered as sensibly as possible and taking my time are key. It's about knowing your limits as it's more a marathon than a sprint.
I'm also using the weather as a TwUnT Indicator - I have a few customers who are quite likely to sit there with a drink and watch me work. They're the ones who will be getting another price hike