Thanks for the tips, but not very applicable in my situation. I never use the laptop keyboard, but rather an external ergonomic keyboard. Building is from 1910

Thanks for the tips, but not very applicable in my situation. I never use the laptop keyboard, but rather an external ergonomic keyboard. Building is from 1910s with central heating that I can control for my apartment, so doesn't affect my electric bill directly. Any form of electric heating would likely be more expensive. Finally, I start wearing shorts and t-shirts at around 25°C, and my favourite indoor temp in summer is 27°C so I guess you're just better adapted for cooler weather.