Spherical bearings are awesome.

Mig welders are awesome.

Swivle extensions are awesome.

Gear/Ratchet wrenches are awesome.

Air tools make everything easier.

Always use jackstands.

Being able to unbolt the core support makes putting an engine in a million times easier, especially if you're not using a load leveler.

Airbag dust is extremely harmful to your nose.

Don't rush things.

Buy legit parts.

Washing your car is the best way to make it faster.