Saw the attachment on another site for 31 bucks and whipped together my own with parts I had. Makes for a great spot free rinse if you like washing your own vehicle.
Maybe a good track cleaner? Haven’t tried personally, I tend to just try to avoid doing the tracks and tell people to never open their windows and to enjoy their air conditioner instead. I hate cleaning tracks.(upload://qUvHf7Xu7zzdzTLvDKRVhQNqqM.jpg)