How do I get Finder to remember the size and location of the window?

Why doesn't Finder remember the damn window size and location? I keep reading crap about holding down Option key while dragging but that doesn't work. It just reverts back to its microscopic size the next time i open it. It's useless and very tedious and it really aggravates me.

How do I make this thing thing stay the way I want it to? I don't mind playing around with system stuff or running scripts - so long as I only have to do it once only.

Any help will be much appreciated!