If your garage doors have windows as mine do, install a full sheet of insulation over the window section. Wait for the adhesive to fully bond, then cut out the window openings with a new razor blade.
Pouring hot water on your icy vehicle is a fool's errand. Cold water can actually thicken the ice, depending on the outside ...
Engine temperatures climb fast whenever you drive, idle in traffic, or run the air conditioning, and your cooling fan quietly ...
Weight (cellulose): Heavy cellulose can potentially damage older drywall or ceilings if applied too thick.