Yes, grease. No, not the Broadway play, just ordinary grease. Grease ranks up there with duct tape and baling were as must haves in any tool box. Here are a few ways to use grease you may not have thought of:

Saving valve cover gaskets.
Glue the valve cover gasket to the valve cover itself with silicon spray and coat the exposed bottom surface with grease. The valve cover now can be removed and reinstalled many times without having to change gaskets. It is like putting quick-disconnects on a valve cover.

Hold screws in place.
Dab some grease on to a screw and it will stick to your screw driver.

Coolant repairs.
Grease up the water pump gasket, thermostat gasket and inside the ends of the coolant hoses. The pump won't leak and the hoses now can be easily changed in the future.

Caution: don't use grease around high temp. areas like exhaust manifolds.