The Ancient Persian way to keep cool
Last couple of summers we've had extended periods where my flat can reach a pretty uncomfortable temperature to work in. I do not want to install AC and have so far managed to counteract it by making sure my windows are open overnight to circulate cool air and by closing different curtains + blinds through the day (one half of my flat gets morning sun, the other half evening sun). This keeps the air in the flat comfortably below the outside temperature, but if I forget to do either of these steps the temperature can creep up a bit and it's not possible to cool it down until evening (and if it's super humid and hot it might not cool that much).I'm wondering if there's any low-energy or green solutions to this. I suspect I'm asking for something impossible or that the only way to improve this is to automate the blind opening/closing :-/