I never forgot and always use shorthand for margin and padding because it runs clockwise, but how do you remember the others?
Do you use CSS sh
I personally am not good at memorizing such things, so I use the specific attributes, background-position background-image background-repeat etc. instead of the shorthand.
I find it's less error prone, and makes for more maintainable code: You can search & replace specific settings project-wide, which is impossible when using shorthand.