Learn how to drive a stick uphill. This is a part two for learning how to drive a stick. This part just focuses on how to engage first up a hill. It takes some practice, but not too bad once you get the hang of it.
Learn how to change the upper ball joint on a 1995 Honda Accord. In the 90-02 Accords, the upper ball joint and A-arm were one piece, so you effectively have to change both. The upper ball joint is welded into the A-arm, so you can't simple hammer out the ball joint and press in a new one.
Learn how to change the rear brake pads on a Subaru WRX STi. These are very similar to the front brake pads, but the bracket is a little different. I think the rears are a bit trickier because of the bracket, but still very doable. Besides that, its basically the same install. Don't forget to put the e-brake down though!