Push the car out of the garage and have a friend "push start" you with another car. Once running, get up a little speed, depress the clutch, and hit the brakes, this usually breaks loose the clutch from the clutch plate. A damp garage is worse than outdoor storage! I bet your gas is bad, and you also have rust in your gas tank. You may want to have the tank dropped and cleaned out. Dampness will start rust all over the place, mildew your interior, ruin your wheel cylinders etc, etc.. [Non-text portions of this message have been removed]