I swapped from shower gel to bar soap about a ago and it has caused soap scum build up which is hard to remove with my normal bathroom cleaner. I found a recipe for a cleaner using vinegar, water and washing up liquid. It's amazing at cleaning and I prefer the idea of not using loads of chemicals in bought stuff. But the vinegar stinks and the smell lasts a few hours. Can I add essential oil or something to help drown out the vinegar?