More than symbol names, I can never remember details about package options. To set uniform margins with the geometry package, is the keyword "margin" or "margin

More than symbol names, I can never remember details about package options. To set uniform margins with the geometry package, is the keyword "margin" or "margins"? If I want to scale tgschola, is the keyword "scale" or "scaled"? Why don't package writers anticipate this? Similarly, depending on the font, the command to get an upright lowercase alpha is either \upalpha, \alphaup, \otheralpha, or something else. Why?