Note: Color above is not exactly "dorm yellow" - this is a prettier related example!
I don't know about you, but all the places I've lived as a renter have been painted an awkward, almost-yellow taupe. I first encountered it on all the walls of my rooms in college, so I call it "dorm yellow". Despite over five years of living with it (and knowing it could be worse!), I haven't figured out how to decorate with sandy yellow walls. Happily for me, and all of us in this situation, there are a bunch of renter-friendly solutions to yucky walls!