UK residents use tinfoil to cool homes

UK residents are advised to use tinfoil on windows to reflect sunlight and stay cooler during the ongoing heatwave. This simple and inexpensive hack aims to mitigate rising indoor temperatures. The method involves placing tinfoil on the outside of windows to deflect sunlight, preventing heat from entering homes. This technique, costing as little as 99p, is recommended by Ideal Home and is similar to how greenhouses function. With temperatures expected to climb, the government also advises using fans cautiously and suggests alternative cooling methods like closing blinds and moving to cooler areas.