I have the basics:

- One heavy duty drain pan with spigot (to drain into very large jugs to take to disposal)
- Good set of ramps
- One metal clamp style oil filter wrench
- One forceps style oil filter wrench
- Metal Funnel
- Brake Clean Spray

I do oil changes for friends now seeing as how many places locally are either booked solid, charge crazy prices (long gone are the days of the $19.99 oil change!) or do poor quality work.
But with the tools above, I haven't had anything come close to defeating me.

Bloody Mary, Full of Vodka, Blessed art thou among cocktails....