Yay, thanks for the information!
I do use vinegar with baking soda to clear slow drains. I mix the baking soda with water so it's a thick but pourable paste and pour it into the drain and let it sit for a couple of minutes to give it time to run down some. Then I slowly pour in a bit of vinegar and let it sit for a second then add more slowly so it does that crazy foaming volcano thing in the sink and down the drain. It works really well. When we moved in our bathroom drain kept getting draining really slow and my husband just went and bought drain cleaner. I don't like using harsh chemicals so I wasn't thrilled about it. I started trying the baking soda/vinegar thing and it worked better than the drain cleaner and it hasn't come back.