of drink stains can look quite bad, especially if you have a lot of spill. take the vinegar onto a paper towel and rub the stain lightly. you should start to see the stain coming off. if it's a bad stain, layer a few towels soaked in vinegar on top of it for a few hours and remove after the stain is gone.
if your shoes are stained with some grease or oil, you can simply use some baking soda. turns out cornstarch or baking soda can save your shoes from being ruined completely. sprinkle the cornstarch or baking soda over the oil stains, and it will start to soak up 