WD-40 is man’s best friend. It scores right up there with action movies, duct tape, and bacon, but did you know that you can also use it to clean the glass in your shower? Christine Argier, an eHow contributing writer advises to use it for cleaning your shower doors. She says to spray generously on the inside and outside of the door and you can spray both dry and wet glass. Wipe it away with a clean dry towel to remove dirt, soap scum, calcium deposits and more. Read her full article here.