If it moves and isn't supposed to... use duct tape...
If it doesn't move and it is supposed to..... use WD40
If you think that a brake spring is bad and lost its temper, drop it on a concrete floor. If it goes "boing".... it is bad. If it has a dull thud sound, it is good.
Heat between the studs with your torch to get a stuck brake drum or rotor free. Couple of raps of the 3# sledge hammer on the side will break it free. Make sure that the brake shoes are retracted on brake drums first. If there is a large ridge on the drum and you can't retract the shoes, take your cutting torch and cut the drum in half. It is no good anyway, and it sure beats ruining the rear axle bearing or backing plate. Using the hot wrench properly, can save you a lot of time and money in the end.
Heat the manifold bolts till they are cherry red and let cool. They come off easily then. Also, you can put a stick of paraffin on the hot studs / bolts to act as a penetrate.
Don't buy anything that you don't have room for in the garage..... Don't ask, won't tell...

Dusty