Three tips on how to clean windows less often. Use dishwashing liquid with surfactants.
A dash of fabric softener in the cleaning water promises a longer, streak-free shine. Use lukewarm water, as the detergent works well and does not lose its effect as it does when temperatures are too high. The water temperature in general is important for cleaning windows. If you use water that is too hot, it will evaporate quickly, which can cause streaks. You can find everything about household and garden tips in the regular living newsletter from our partner Merkur.de.