They revealed using vinegar could be enough to leave windows in top condition. Many added it could be combined with bicarbonate soda to give the best results. One wrote: "I used watered down vinegar in a spray bottle and a little brush, and sprayed at it all, loosened it with the brush then wiped with a cloth as best as I could when mine were like that." Cleaning: Some suggested using vinegar to clean (Image: GETTY) READ MORE A second social media user simply commented: "Bicarbonate soda and white vinegar." A third recommended mixing vinegar with bicarbonate soda and using a toothbrush to remove the stains in just 15 minutes.