Pinned over 24,000 times, this cleaning trick is one to keep handy. All you need: distilled white vinegar, paper towels, a spray bottle, and an old toothbrush for scrubbing. Lay paper towels soaked in vinegar along the shower door tracks, and leave them there for 30 minutes. When the time's up, the grime should easily come off with a toothbrush. For tight spots, use a Q-tip. For more, go to Cents-able Momma.
Just wanted to let you know bar keepers friend comes in a powder form. i mix 2 cps. water and half cup powder. it is the same container the old comet comes in just different name. It so works:)soapscum5
How to Magically Remove Soap Scum with No Scrubbing Required
Easiest way to clean glass shower doors! Soak paper towels in white vinegar, stick them to the shower door rubbing out all the wrinkles & air bubbles, leave it for a few hours, come back and peel the paper towels off wiping as you go. Hard water and soap scum will just wipe away! Seriously, no elbow grease needed! Cheap, chemical free way to remove hard water.