Clean windows without streaks - with a little dishwashing liquid and a soft sponge. The Bavarian Consumer Service explains on its website what you should pay attention to when cleaning windows.
Start with windows that are in the shade. A warm and overcast day is best. Less is more – be careful not to use too much detergent. Change the cleaning water as soon as it becomes dirty. You can find everything about household and garden tips in the regular living newsletter from our partner Merkur.de.