What RPM should I be shifting at?

drag racing would be the rev limiter, I do this racing in town and I always win
Rock crawling would be near 2 so I can get out and spot myself.
Mud...……. refer to the first
Grandma, You got her in your Jeep? nice and smooth
girlfriend, near the rev limiter to impress but you don't want to fry it and become the laughing stock. Delicate balance
Wife, depends what parts you want upgrade
MPG, ha, I laugh
SPG, whatever mood I am in (smiles per gallon)

Those are about the most serous RPMs I worry about, hope that helps