I’m going to prepare you right now that this post is not going to be pretty. At least it will make you feel better about the cleanliness of your own home. I promise that I’m a clean person, I just never knew how to clean these sliding door tracks.That said, take a look at my before and after shots.
All you need to tackle this project is white vinegar and q-tips. I needed a lot of q-tips. I used two at a time for the initial sweep through just to cover more ground. This method would work well for those hard to reach spots in your windowsills too.