Q: My landlord’s novice repair person caulked around the bathtub — twice. Both times, the caulk pulled away from the wall. Why? And what’s the right way to do it? A: New caulk doesn’t stick well to ...

WD-40 is a staple of garages, home workshops, and machine shops everywhere and has been for decades now. This little spray, in its now multiple, specialized forms, is great for everything from ...